Alaska Resource Data File, 

Healy quadrangle, Alaska 

By Donald L. Stevens 1 

Open-File Report 01-109 

2001 

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey 

editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or 

product names is for descriptive purposes only and does not imply endorsement by the U.S. 

Government. 

U.S. DEPARTMENT OF THE INTERIOR 

U.S. GEOLOGICAL SURVEY 

1

 Anchorage, Alaska 
Alaska Resource Data File 

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic code. Any use 

of trade, product, or firm names is for descriptive purposes only and does not imply 

endorsement by the U.S. Government. 

OPEN-FILE REPORT 01-109 

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Distribution of mineral occurrences in the Healy

1:250,000-scale quadrangle, Alaska

 This and related reports are accessible through the USGS World Wide Web site 

http://ardf.wr.usgs.gov. Comments or information regarding corrections or missing 

data, or requests for digital retrievals should be directed to: Frederic Wilson, USGS, 4200 

University Dr., Anchorage, AK 99508-4667, e-mail fwilson@usgs.gov, telephone (907) 

786-7448. This compilation is authored by:

 Donald L. Stevens

 Anchorage, AK

Healy quadrangle

 Descriptions of the mineral occurrences shown on the accompanying figure follow. 

See U.S. Geological Survey (1996) for a description of the information content of each field 

in the records. The data presented here are maintained as part of a statewide database 

on mines, prospects and mineral occurrences throughout Alaska.
Alaska Resource Data File 

Page 2 

Site name(s): McCall 

Site type: Prospect 

ARDF no.: HE001 

Latitude: 63.69 Quadrangle: HE C-6 

Longitude: 149.74 

Location description and accuracy:

 The McCall prospect is at an elevation of about 2,400 feet on a northeast-trending spur 

above the headwaters of the Sushana River. It is in the northwest corner of sec. 19, T. 14 

S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 1 mile. This is 

location 1 of Clark and Cobb (1972). 

Commodities: 

 Main: Ag, Pb 

 Other: 

Ore minerals: Galena 

Gangue minerals: Calcite, quartz, siderite 

Geologic description:

 Little information about this prospect has been made public. Apparently, it consists of 

galena-bearing quartz-carbonate veins that cut Devonian metavolcanic schist and phyllite. 

Samples contain up to 55 percent lead and 6 ounces of silver per ton (Berg and Cobb, 

1967). 

Alteration:

 

Age of mineralization:

 The veins are Devonian or younger. 

Deposit model:

Polymetallic veins (Cox and Singer, 1986; 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

HE001 
Alaska Resource Data File 

Page 3 

Site Status: Inactive 

Workings/exploration:

 Minor surface workings. Samples contain up to 55 percent lead and 6 ounces of silver 

per ton (Berg and Cobb, 1967). 

Production notes:

 

Reserves:

 

Additional comments:

 This site is in Denali National Park. 

References:

Berg and Cobb, 1967; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE001 
Alaska Resource Data File 

Page 4 

Site name(s): Unnamed (near north end of Wyoming Hills) 

Site type: Prospect 

ARDF no.: HE002 

Latitude: 63.69 Quadrangle: HE C-6 

Longitude: 149.92 

Location description and accuracy:

 The approximate location of this prospect is near the north end of the Wyoming Hills, 

west of the East Fork Toklat River. The map site is at an elevation of about 3,800 feet, 

just north of the center of sec. 20, T. 14 S., R. 12 W., of the Fairbanks Meridian. The location is accurate to within 1.5 miles. 

Commodities: 

 Main: Ag, Pb 

 Other: Zn 

Ore minerals: Galena, sphalerite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The country rocks in the area of this prospect are Devonian metavolcanic schist and 

phyllite. Limited published information suggests that the deposit consists of silver-bearing 

galena-sphalerite-calcite-quartz veins in the metamorphic rocks. This description is 

largely inferred from Berg and Cobb's (1967) description of silver-rich lead-zinc veins in 

the Kantishna district. 

Alteration:

 

Age of mineralization:

 

Deposit model:

Polymetallic veins (Cox and Singer, 1986; 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: Undetermined. 

HE002 
Alaska Resource Data File 

Page 5 

Site Status: Inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 Prospect is in Denali National Park Wilderness. 

References:

Berg and Cobb, 1967. 

Primary reference: Berg and Cobb, 1967 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE002 
Alaska Resource Data File 

Page 6 

Site name(s): Sunday Creek 

Site type: Prospect 

ARDF no.: HE003 

Latitude: 63.80 Quadrangle: HE D-5 

Longitude: 149.33 

Location description and accuracy:

 This placer gold prospect is on Sunday Creek, a west-flowing tributary of the Savage 

River. The map site is on lower Sunday Creek, at the center of sec. 8, T. 13 S., R. 9 W., of 

the Fairbanks Meridian. The location is accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Sunday Creek drains an area underlain by Eocene to Miocene, poorly consolidated, pebbly sandstone, claystone, and subituminous coal, and a basement complex of Paleozoic or 

older Birch Creek Schist and Mesozoic and Tertiary plutons (Wilson and others, 1998). 

The probable sources of the placer gold in Sunday Creek are paleoplacers in the Tertiary 

sedimentary rocks. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE003 
Alaska Resource Data File 

Page 7 

Site Status: Probably inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE003 
Alaska Resource Data File 

Page 8 

Site name(s): Winter Creek 

Site type: Occurrence 

ARDF no.: HE004 

Latitude: 63.99 Quadrangle: HE D-4 

Longitude: 148.67 

Location description and accuracy:

 This placer gold occurrence is on Winter Creek, a tributary to California Creek northeast of Jumbo Dome. Placer activity has occurred upstream from the mouth of Winter 

Creek, to the map site, which is in the NE1/4 of sec. 2, T. 11 S., R. 6 W., of the Fairbanks 

Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage area of Winter Creek includes a sequence of Eocene to Miocene, poorly 

consolidated, pebbly sandstone, claystone and subituminous coal, that is overlapped unconformably by Nenana Gravel (Wilson and others, 1998). Most of Winter Creek flows 

over inliers of Keevy Peak Formation, cut by Pliocene hornblende dacite. The probable 

source of the placer gold in Winter Creek are Tertiary paleoplacers in the Nenana Gravel. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE004 
Alaska Resource Data File 

Page 9 

Site Status: Probably inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE004 
Alaska Resource Data File 

Page 10 

Site name(s): Homestake Creek; Platte Creek 

Site type: Mine 

ARDF no.: HE005 

Latitude: 63.97 Quadrangle: HE D-4 

Longitude: 148.56 

Location description and accuracy:

 Gold placer mining activity has taken place for at least 2 miles along Homestake Creek 

and its upstream continuation Platte Creek. The map site is in sec. 5, T. 11 S., R. 5 W., of 

the Fairbanks Meridian. This is location 57 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Upper Platte Creek drains en Eocene to Miocene sequence of poorly consolidated pebbly sandstone, claystone, and subituminous coal (Wilson and others, 1998). Lower Platte 

Creek to its junction with Fox Creek drains schist of the Keevy Peak Formation, which is 

intruded by Tertiary hypabyssal granitic rocks. The workings at Platte Creek are in wellsorted and rounded gravels 3 to 6 feet thick. Most of the gold is in the lower 2 to 3 feet of 

the gravel and upper part of schist bedrock. Paystreaks 25 to 60 feet wide were reported 

(Cobb, 1973: B1374). In Homestake Creek, the gravels are coarse and poorly sorted, and 

contain abundant cobble and boulder-sized clasts that include large angular blocks of andesite. The gravels in Platte Creek were reported to carry 0.14 ounce of gold per cubic 

yard. Gravels on bedrock downstream contained 0.14 to 0.43 ounce of gold per cubic yard 

(Capps, 1912). The most probable sources of the placer gold are Tertiary paleoplacers 

formed during an earlier erosional cycle of the Alaska Range. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

HE005 
Alaska Resource Data File 

Page 11 

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Surface only. The gravels in Platte Creek were reported to carry 0.14 ounce of gold per 

cubic yard. Gravels on bedrock downstream contained 0.14 to 0.43 ounce of gold per cubic yard (Capps, 1912). 

Production notes:

 Most of the production occurred before 1912. 

Reserves:

 

Additional comments:

 The stream gradient in Platte Creek is 100 feet per mile; in Homestake Creek it is 200 

feet per mile. 

References:

Capps, 1912; Berg and Cobb, 1967; Cobb, 1973 (B 1374); Cobb, 1978 (OFR 78-1062); 

Wilson and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE005 
Alaska Resource Data File 

Page 12 

Site name(s): Fox Creek; Fox Gulch 

Site type: Mine 

ARDF no.: HE006 

Latitude: 63.96 Quadrangle: HE D-4 

Longitude: 148.57 

Location description and accuracy:

 The Fox Creek placer gold deposit is along Fox Creek from its junction with Homestake Creek upstream for the length of Fox Creek, a distance of approximately 1 mile. 

This site may also include some workings on Homestake Creek. The map site is at the 

approximate midpoint of the placer acticity, in sec. 8, T. 11 S., R. 5 W., of the Fairbanks 

Meridian. This is location 57 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Upper Fox Creek drains an Eocene to Miocene sequence of poorly consolidated, readily 

eroded pebbly sandstone, claystone and subituminous coal (Wilson and others, 1998). 

Lower Fox Creek drains Keevy Peak Formation schist and Tertiary, hypabyssal granitic 

rocks. The most probable sources of the placer gold in Fox Creek are Tertiary paleoplacers formed during an earlier erosional cycle of the Alaska Range. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE006 
Alaska Resource Data File 

Page 13 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Brooks, 1910; Brooks, 1911; Capps, 1912; Maddren, 1918; Brooks and Capps, 1924; 

Smith, 1930; Smith, 1933 (B 844); Smith, 1933 (B 857); Smith, 1936; Smith, 1937; 

Smith, 1938; Smith, 1942 (B 926); Smith, 1942 (B 933); Clark and Cobb, 1972; Cobb, 

1978 (OFR 78-1062); Wilson and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE006 
Alaska Resource Data File 

Page 14 

Site name(s): Marguerite Creek 

Site type: Mine 

ARDF no.: HE007 

Latitude: 63.93 Quadrangle: HE D-4 

Longitude: 148.64 

Location description and accuracy:

 The Marguerite Creek placer gold mine is in upper Marguerite Creek, about 2 miles east 

northeast of Jumbo Dome. Most of the mining has been near the head of the creek, but 

some placer activity may have extended for some distance downstream. The map site is 

in sec. 13, T. 11 S., R. 6 W., of the Fairbanks Meridian. This is location 56 of Clark and 

Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Most of Marguerite Creek drains an area underlain by Eocene to Miocene, poorly consolidated, pebbly sandstone, claystone and subituminous coal. These strata pinch out 

northward and are overlapped unconformably by Tertiary Nenana Gravel (Wilson and 

others, 1998). Parts of Margurite Creek flow over inliers of Keevy Peak Formation, and a 

Pliocene hornblende dacite plug centered on Jumbo Dome controls the arcuate shape of 

the creek. The probable source of the placer gold in Margurite Creek are Tertiary paleoplacers in the Nenana Gravel. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE007 
Alaska Resource Data File 

Page 15 

39a 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 There are only surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, 1930; Smith, 1932; Smith, 1933 (B 836); Smith, 1933 (B 844); Smith, 1933 (B 

857); Smith, 1936 (B 864); Smith, 1936 (B 868); Smith, 1937; Smith, 1938; Smith, 1939; 

Smith, 1942 (B 926); Smith, 1942 (B 933); Clark and Cobb, 1972; Cobb, 1978 (OFR 78-

1062); Wilson and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE007 
Alaska Resource Data File 

Page 16 

Site name(s): Sanderson Creek 

Site type: Prospect 

ARDF no.: HE008 

Latitude: 63.82 Quadrangle: HE D-4 

Longitude: 148.65 

Location description and accuracy:

 This placer gold prospect is on Sanderson Creek, a tributary of Lignite Creek. The map 

site is at about the midpoint of the placer, in the SW1/4 of sec. 36, T. 11 S., R. 6 W., of 

the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Sanderson Creek drains an area underlain by Birch Creek Schist, by Mesozoic to Tertiary granites, and by younger Tertiary strata that overlie the older rocks. The Tertiary strata 

contain gold paleoplacers that probably are the source of the placer gold in Sanderson 

Creek. Claims have been located and relocated on Sanderson Creek, but there is no evidence that there has been any actual mining (Cobb, 1978: OFR 78-1062). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE008 
Alaska Resource Data File 

Page 17 

Site Status: Probably inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Maddren, 1918; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE008 
Alaska Resource Data File 

Page 18 

Site name(s): Gold Run Creek 

Site type: Prospect 

ARDF no.: HE009 

Latitude: 63.89 Quadrangle: HE D-4 

Longitude: 148.69 

Location description and accuracy:

 This gold placer is on Gold Run Creek, a south-flowing tributary to Healy Creek. Placer 

workings extend upstream for more than a mile, but most of the activity was from 0.2 to 

0.8 mile from the mouth of Gold Run Creek. The map site is in the SE1/4 of sec. 10, T. 

12 S., R. 6 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Gold Run Creek drains the Tertiary Nenana Gravel, which locally contains gold paleoplacers. Those paleoplacers probably are the source of the placer gold in Gold Run Creek. 

Activity on Gold Run Creek was probably synchronous with that on nearby Gagnon 

Creek and French Gulch (HE010 and HE012) (Cobb, 1978: OFR 78-1062). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE009 
Alaska Resource Data File 

Page 19 

Site Status: Active? 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE009 
Alaska Resource Data File 

Page 20 

Site name(s): Gagnon Creek; Home Creek 

Site type: Mine 

ARDF no.: HE010 

Latitude: 63.89 Quadrangle: HE D-4 

Longitude: 148.73 

Location description and accuracy:

 The Gagnon Creek placer gold mine is along Gagnon Creek, a tributary to Healy Creek. 

Placer workings extend upstream from the mouth of the creek, but most of the activity 

was from about 0.2 to 0.8 mile from its mouth. The map site is in sec. 9, T. 12 S., R. 6 

W., of the Fairbanks Meridian. This is location 65 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Gagnon Creek drains the Tertiary Nenana Gravel, which locally contains gold paleoplacers. The deposit at Gagnon Creek consists of well-sorted auriferous gravels at a depth 

of up to 5 feet, and having an average thickness of 2 feet. The placer gold in Gagnon 

Gulch probably results from reworking the Nenana Gravel. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

HE010 
Alaska Resource Data File 

Page 21 

Site Status: Inactive 

Workings/exploration:

 Surface only. 

Production notes:

 Approximately 194 ounces of gold was mined from 1913 to 1917 (Cobb, 1978 (OFR 

78-1062). 

Reserves:

 

Additional comments:

 

References:

Maddren, 1918; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE010 
Alaska Resource Data File 

Page 22 

Site name(s): Healy Creek 

Site type: Mine 

ARDF no.: HE011 

Latitude: 63.88 Quadrangle: HE D-4 

Longitude: 148.7 

Location description and accuracy:

 Healy Creek is a tributary to the Nenana River. The creek has been placer mined for 

about 8 miles from the mouth of Healy Creek upstream nearly to the junction of Coal 

Creek. The map site is near the upper end of the workings, in the NE1/4 of sec. 15, T. 12 

S., R. 6 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Upper Healy Creek drains an area underlain by Birch Creek Schist cut by Mesozoic to 

Tertiary granites. Lower Healy Creek drains Eocene to Miocene sandstone, claystone and 

subituminous coal (Wilson and others, 1998), unconformably overlain by gold-bearing 

Miocene gravels. The auriferous gravels are the likely source of placer gold in Healy 

Creek. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE011
Alaska Resource Data File 

Page 23 

Site Status: Probably inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1912; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE011 
Alaska Resource Data File 

Page 24 

Site name(s): French Gulch 

Site type: Prospect 

ARDF no.: HE012 

Latitude: 63.87 Quadrangle: HE D-4 

Longitude: 148.77 

Location description and accuracy:

 The French Gulch placer gold prospect is along French Gulch about 0.5 mile from its 

junction with Healy Creek. The map site is in sec. 17, T. 12 S., R. 6 W., of the Fairbanks 

Meridian. This is location 64 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 French Gulch drains the Tertiary Nenana Gravel, which locally contains gold paleoplacers. The source of the placer gold in French Gulch probably results from reworking the 

Nenana Gravel. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Inactive 

HE012 
Alaska Resource Data File 

Page 25 

Workings/exploration:

 Surface only. 

Production notes:

 One of the limiting factors for mining here was the lack of water. 

Reserves:

 

Additional comments:

 

References:

Brooks, 1915; Maddren, 1918; Wahrhaftig, 1970 (GQ 806); Clark and Cobb, 1972; Cobb, 

1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE012 
Alaska Resource Data File 

Page 26 

Site name(s): Alaska Creek; Alaska Gulch 

Site type: Prospect 

ARDF no.: HE013 

Latitude: 63.86 Quadrangle: HE D-4 

Longitude: 148.80 

Location description and accuracy:

 The Alaska Creek placer prospect is at an elevation of about 1,800 feet, about 0.3 mile 

upstream from its confluence with Healy Creek. The map site is in sec. 19, T. 12 S., R. 6 

W., of the Fairbanks Meridian. This is location 63 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Alaska Creek is a placer gold prospect that drains the Tertiary Nenana Gravel. The 

source of the Nenana Gravel is the Alaska Range, whose lode deposits presumably are the 

source of the gold (Yeend, 1982, 1984). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

Site Status: Inactive 

HE013 
Alaska Resource Data File 

Page 27 

Workings/exploration:

 Surface workings only; reports of nuggets up to 0.15 oz recovered (Cobb, 1978 (OFR 

78-1062). 

Production notes:

 

Reserves:

 

Additional comments:

 Alaska Creek is northeast of three tributaries to Healy Creek that contain placer gold. 

See also: French Gulch (HE012) and Gagnon Creek (HE010). 

References:

Brooks, 1915; Maddren, 1918; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062); 

Yeend, 1982; Yeend, 1984. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE013 
Alaska Resource Data File 

Page 28 

Site name(s): Popovich Creek 

Site type: Prospect 

ARDF no.: HE014 

Latitude: 63.92 Quadrangle: HE D-4 

Longitude: 148.83 

Location description and accuracy:

 Popovich Creek is a south-flowing tributary to Lignite Creek. Placer gold has been reported along the lower course of Popovich Creek for a distance of 1.5 miles. The map 

site is about 0.3 mile upstream from the mouth of the creek, in sec. 36, T. 11 S., R. 7 W., 

of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Popovich Creek drains an area underlain by Eocene to Miocene, poorly consolidated, 

pebbly sandstone, claystone, and sub-bituminous coal. These strata pinch out northward 

and are overlapped unconformably by Tertiary Nenana Gravel (Wilson and others, 1998). 

Parts of Popovich Creek also flow over inliers of Keevy Peak Formation. The most probable sources of the placer gold in Popovich Creek are Tertiary paleoplacers in the Nenana 

Gravel. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE014 
Alaska Resource Data File 

Page 29 

Production Status: Undetermined. 

Site Status: Inactive 

Workings/exploration:

 Surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Maddren, 1918; Wahrhaftig, 1970 (GQ 806); Cobb, 1978 (OFR 78-1062); Wilson and 

others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE014 
Alaska Resource Data File 

Page 30 

Site name(s): Lignite Creek; Hoseanna Creek 

Site type: Prospect 

ARDF no.: HE015 

Latitude: 63.91 Quadrangle: HE D-4 

Longitude: 148.90 

Location description and accuracy:

 This placer prospect is on Lignite Creek, about 3 miles upstream from its junction with 

the Nenana River. The map site is near the mouth of Frances Creek, in sec. 3, T. 12 S., R. 

7 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Lignite Creek drains an Eocene to Miocene sequence of poorly consolidated, pebbly 

sandstone, claystone and subituminous coal. The sequence pinches out northward and is 

overlapped unconformably by Tertiary Nenana Gravel (Wilson and others, 1998). The 

southern edge of the Lignite Creek drainage basin is underlain by of Birch Creek Schist. 

Placer gold has been reported in Lignite Creek near the mouth of Frances Creek. The 

sources of the gold probably are paleoplacers in the Nenana Gravel. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE015 
Alaska Resource Data File 

Page 31 

Site Status: Inactive 

Workings/exploration:

 Surface workings prior to 1918. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Maddren, 1918; Joesting, 1942 (MR 194-11); Cobb, 1978 (OFR 78-1062); Wilson and 

others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE015 
Alaska Resource Data File 

Page 32 

Site name(s): Antler Creek 

Site type: Prospect 

ARDF no.: HE016 

Latitude: 63.82 Quadrangle: HE D-4 

Longitude: 148.96 

Location description and accuracy:

 This placer gold prospect is on Antler Creek, a northeast-flowing tributary to the Nenana River about midway between Garner and Moody. The map site is on lower Antler 

Creek, in the NW1/4 of sec. 5, T. 13 S., R. 7 W., of the Fairbanks Meridian. The location 

is accurate within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Antler Creek drains an area underlain by metasedimentary rocks of the Paleozoic or 

older Birch Creek Schist, and by Mesozoic and Tertiary intrusive rocks. The lode source 

of the placer gold in Antler Creek has not been identified. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

HE016 
Alaska Resource Data File 

Page 33 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE016 
Alaska Resource Data File 

Page 34 

Site name(s): Iceworm Gulch 

Site type: Prospect 

ARDF no.: HE017 

Latitude: 63.76 Quadrangle: HE D-4 

Longitude: 148.89 

Location description and accuracy:

 This placer gold prospect is in Iceworm Gulch, a tributary of the Nenana River about 

2.5 miles upstream from the town of Moody. The map site is in the NW1/4 of sec. 27, T. 

13 S., R. 7 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Iceworm Gulch drains an area underlain by Birch Creek Schist and Mesozoic to Tertiary intrusive rocks. The source of the placer gold is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

HE017 
Alaska Resource Data File 

Page 35 

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE017 
Alaska Resource Data File 

Page 36 

Site name(s): Unnamed (east of Sugar Loaf Mountain) 

Site type: Prospect 

ARDF no.: HE018 

Latitude: 63.79 Quadrangle: HE D-4 

Longitude: 148.79 

Location description and accuracy:

 This placer gold prospect is on an unnamed, northeast-flowing tributary to Moody 

Creek, about 1.3 mile east of Sugar Loaf Mountain. The map site is at the approximate 

midpoint of the placer activity, in the north-central part of sec. 18, T. 13 S., R. 6 W., of 

the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The area drained by this creek is underlain by the Birch Creek Schist, and Mesozoic to 

Tertiary intrusive rocks. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

HE018 
Alaska Resource Data File 

Page 37 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wahrhaftig, 1958. 

Primary reference: Wahrhaftig, 1958 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE018 
Alaska Resource Data File 

Page 38 

Site name(s): Unnamed (south of Polychrome Pass) 

Site type: Prospect 

ARDF no.: HE019 

Latitude: 63.50 Quadrangle: HE B-6 

Longitude: 149.92 

Location description and accuracy:

 This prospect is at an elevation of about 4,400 feet, east of upper Toklat River and 

about a mile south-southeast of Polychrome Pass. The map site is just north of the center 

of sec. 29, T. 16 S., R. 12 W., of the Fairbanks Meridian. Access to the site is from the 

McKinley Park road. The location is accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this prospect are the Paleocene Cantwell Formation, 

which consists of andesite, basalt, rhyolite and dacite flows, pyroclastic rocks, a few interbeds of sandstone and a few small bodies of related subvolcanic intrusive rocks. Little information about this deposit has been made public. Apparently, it consists of auriferous 

quartz veins in the Paleocene volcanic rocks. 

Alteration:

 

Age of mineralization:

 Paleocene or younger. 

Deposit model:

Low-sulfide Au-quartz veins(?) (Cox and Singer, 1986; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a(?) 

Production Status: Undetermined. 

HE019 
Alaska Resource Data File 

Page 39 

Site Status: Inactive 

Workings/exploration:

 No recent exploration or development work. No record of old mine workings; probably 

surface work only. 

Production notes:

 

Reserves:

 

Additional comments:

 The prospect is in Denali National Park Wilderness. 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE019 
Alaska Resource Data File 

Page 40 

Site name(s): Triem 

Site type: Prospect 

ARDF no.: HE020 

Latitude: 63.27 Quadrangle: HE B-6 

Longitude: 149.87 

Location description and accuracy:

 The Triem gold placer prospect is on an unnamed, southeast-flowing tributary to the 

West Fork Chulitna River, about 4.3 miles downstream from the foot of West Fork Galcier. The map site is at the northwest corner of sec. 16, T. 19 S., R. 13 W., of the Fairbanks Meridian. This is location E-1 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage basin of the West Fork Chulitna River locally contains auriferous lode deposits, but the specific source of the gold in the Triem placer deposit is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Inactive 

HE020 
Alaska Resource Data File 

Page 41 

Workings/exploration:

 There are only surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (ORF 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE020 
Alaska Resource Data File 

Page 42 

Site name(s): New Golden Zone 

Site type: Prospect 

ARDF no.: HE021 

Latitude: 63.26 Quadrangle: HE B-6 

Longitude: 149.83 

Location description and accuracy:

 The New Golden Zone placer gold prospect is on a north-flowing tributary to the West 

Fork Chulitna River, about 5.3 miles below the foot of West Fork Glacier. The map site is 

in the NW1/4 of sec. 22, T. 19 S., R. 12 W., of the Fairbanks Meridian. This is location 

E-2 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage basin of the West Fork Chulitna River locally contains auriferous lode deposits, but the specific source of the gold in the New Golden Zone placer deposit is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Inactive 

HE021 
Alaska Resource Data File 

Page 43 

Workings/exploration:

 There are only surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE021 
Alaska Resource Data File 

Page 44 

Site name(s): Kathleen 

Site type: Prospect 

ARDF no.: HE022 

Latitude: 63.28 Quadrangle: HE B-6 

Longitude: 149.76 

Location description and accuracy:

 The Kathleen gold placer prospect is on Ruby Creek, a south-flowing tributary to West 

Fork Chulitna River, about 7 miles below the foot of West Fork Glacier. The map site is 

just below the center of sec. 12, T. 19 S., R 12 W., of the Fairbanks Meridian. The placer 

gold in Ruby Creek occurs for a distance of about 2 miles upstream from the mouth. This 

is location E-3 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage basin of the West Fork Chulitna River locally contains auriferous lodes, 

but the specific source of the gold in the Kathleen placer deposit is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Inactive 

HE022 
Alaska Resource Data File 

Page 45 

Workings/exploration:

 Surface exploration. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE022 
Alaska Resource Data File 

Page 46 

Site name(s): Chulitna West 

Site type: Occurrences 

ARDF no.: HE023 

Latitude: 63.25 Quadrangle: HE B-6 

Longitude: 149.70 

Location description and accuracy:

 The West Fork Chulitna River contains occurrences of placer gold that extend about 2 

miles upstream from the map site, which is the NW1/4 of sec. 20, T. 21 S., R. 11 W., of 

the Fairbanks Meridian. This is location E-4 of Balen (1990: OFR 34-90). The location is 

accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The West Fork Chulitna River drains a catchment basin containing porphyry, skarn, and 

vein deposits, all having significant gold content. These deposits probably are the sources 

of the placer gold in the West Fork Chulitna River. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Inactive 

HE023 
Alaska Resource Data File 

Page 47 

Workings/exploration:

 There are only surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE023 
Alaska Resource Data File 

Page 48 

Site name(s): Black Bear 1-5 

Site type: Prospect 

ARDF no.: HE024 

Latitude: 63.26 Quadrangle: HE B-6 

Longitude: 149.60 

Location description and accuracy:

 The Black Bear placer gold prospect is on an unnamed, south-flowing tributary to the 

West Fork Chulitna River, about 1.5 miles upstream from the junction of Colorado Creek. 

The map site is in the NW1/4 of sec. 23, T. 19 S., R. 11 W., of the Fairbanks Meridian. 

This is location E-5 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage area around the Black Bear gold placer prospect contains porphyry, skarn, 

and polymetallic and epithermal vein deposits, all having significant gold content. Three 

placer samples contained good gold values; the richest assayed 0.7 ounce of gold per ton 

(Balen, 1990: OFR 34-90). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE024 
Alaska Resource Data File 

Page 49 

Site Status: Inactive 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE024 
Alaska Resource Data File 

Page 50 

Site name(s): Unnamed (on Colorado Creek) 

Site type: Prospect 

ARDF no.: HE025 

Latitude: 63.25 Quadrangle: HE B-6 

Longitude: 149.56 

Location description and accuracy:

 Placer claims have been recorded along Colorado Creek from the junction with the 

West Fork Chulitna River upstream for about 2 miles. The map site is in sec. 24, T. 19 S., 

R. 11 W., of the Fairbanks Meridian. This is locality 4 of Cobb (1978: OFR 78-1062), 

and locality E-6 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: Bi 

Ore minerals: Bismuthinite, gold 

Gangue minerals: 

Geologic description:

 The location of the Colorado Creek gold placer is uncertain, and there is no evidence of 

even minor production. The drainage area includes faulted Mesozoic and Paleozoic sedimentary and volcanic rocks that have been metamorphosed, intruded by a variety of dikes 

and stocks, and cut by polymetallic veins. Of interest are early reports that the placer concentrate contains bismuthinite, marcasite and rather coarse gold (Cobb, 1978: OFR 78-

1062). Veins having this mineralogy occur north of the Golden Zone mine (HE043), and 

possibly also in the Colorado Creek drainage area. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE025 
Alaska Resource Data File 

Page 51 

Production Status: Undetermined. 

Site Status: Probably inactive 

Workings/exploration:

 Surface exploration. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Ross, 1933; Berg and Cobb, 1967; Hawley and Clark, 1968; Clark and 

Cobb, 1972; Hawley and Clark, 1974; Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 34-

90). 

Primary reference: Ross, 1933 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE025 
Alaska Resource Data File 

Page 52 

Site name(s): Silver King 

Site type: Prospect 

ARDF no.: HE026 

Latitude: 63.26 Quadrangle: HE B-6 

Longitude: 149.55 

Location description and accuracy:

 The Silver King prospect is located on the eastern side of Colorado Creek in the northern half of sections 19 and 24, T. 19 S., R. 10 W., of the Fairbanks Meridian. The location 

is accurate to within 0.5 mile. The Silver King prospect is not the same as the Silver King 

mine shown on the Healy A-6 1:63,360-scale topographic sheet. 

Commodities: 

 Main: Ag, Au, Cu 

 Other: Bi, Co, Sb 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite, pyrrhotite, stibnite 

Gangue minerals: Calcite, quartz 

Geologic description:

 Thick Quaternary glacial deposits and Upper Tertiary sedimentary strata cover the bedrock in this area. The country rocks in the area of the Silver King prospect consist of Upper Jurassic to Upper Triassic(?) crystal tuff, argillite, chert, graywacke, and limestone 

that are intruded by Upper Cretaceous quartz diorite porphyry stocks and dikes (Wilson 

and others, 1998). Intrusion of the dikes and quartz-sulfide mineralization are localized 

along the nearby Chulitna fault. The Silver King deposit includes: tactite (skarn) replacement bodies; auriferous arsenopyrite-chalcopyrite quartz veins; stibnite-gold-silver veins; 

silver-lead-zinc veins; and as breccia pipes associated with porphyry stock and dikes. 

Sporadic mineralization is present over a 2,000 feet by 800 feet area. (Hawley and Clark, 

1974). 

 Hawley and Clark (1974) reported the following sample analyses. A massive sulfide 

pod in skarn contained 8.3 ounces of gold per ton. An arsenopyrite-rich vein contained 50 

ppm silver, 200 ppm gold, 700 ppm cobalt, 1,500 ppm copper, 200 ppm lead, 500 ppm 

antimony, 200 ppm zinc, more than 1,000 ppm bismuth and more than 10,000 ppm arsenic. A stibnite-rich vein contained 10 ppm silver, 23 ppm gold, 200 ppm copper, 300 ppm 

lead, 1,500 ppm zinc, 7,000 ppm arsenic and more than 10,000 ppm antimony. Salisbury 

and Dietz (1984) reported the following: arsenopyrite veins returned assay values of 0.85 

ounces of silver per ton, 0.87 ounces of gold per ton and 0.44% cobalt; and stibniteHE026 
Alaska Resource Data File 

Page 53 

bearing veins contained 0.12 ounces of silver per ton and 0.29 ounces of gold per ton. The 

Silver King deposit is part of a northeast trending mineralized zone that includes the Liberty (HE028), Lucrata (HE029) and Eagle (HE030) prospects. 

Alteration:

 Skarn formation widespread; porphyry-type alteration is also reported. 

Age of mineralization:

 Similar sulfide-bearing intrusive rocks and veins in the district have been dated as Late 

Cretaceous (Swainbank and others, 1977), but Au-Ag-stibnite and Ag-Pb-Zn veins could 

be younger (Early Tertiary?). 

Deposit model:

Polymetallic vein, Cu-Au porphyry, Cu skarn, and Simple Sb veins (Cox and Singer, 

1986; models 22c, 20c, 18b, and 27d) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 20c, 18b, 27d 

Production Status: Undetermined. 

Site Status: Active 

Workings/exploration:

 Surface workings, mostly trenches and pits. Site-specific geophysical surveys noted in 

literature and probably drill testing, but specific data are not available. 

 Hawley and Clark (1974) reported the following sample analyses. A massive sulfide 

pod in skarn contained 8.3 ounces of gold per ton. An arsenopyrite-rich vein contained 50 

ppm silver, 200 ppm gold, 700 ppm cobalt, 1,500 ppm copper, 200 ppm lead, 500 ppm 

antimony, 200 ppm zinc, more than 1,000 ppm bismuth and more than 10,000 ppm arsenic. A stibnite-rich vein contained 10 ppm silver, 23 ppm gold, 200 ppm copper, 300 ppm 

lead, 1,500 ppm zinc, 7,000 ppm arsenic and more than 10,000 ppm antimony. Salisbury 

and Dietz (1984) reported the following: arsenopyrite veins returned assay values of 0.85 

ounces of silver per ton, 0.87 ounces of gold per ton and 0.44% cobalt; and stibnitebearing veins contained 0.12 ounces of silver per ton and 0.29 ounces of gold per ton. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Ross, 1933; Hawley and Clark, 1968; Hawley and others, 1969; Hawley and 

Clark, 1974; Swainbank and others, 1977; Hawley and others, 1978; Cobb, 1978 (OFR 

78-1062); Bundtzen, 1983; Salisbury and Dietz, 1984; Balen, 1990 (OFR 34-90); Wilson 

HE026 
Alaska Resource Data File 

Page 54 

and others, 1998. 

Primary reference: Salisbury and Dietz, 1984 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE026 
Alaska Resource Data File 

Page 55 

Site name(s): Center Star 

Site type: Prospect 

ARDF no.: HE027 

Latitude: 63.26 Quadrangle: HE B-6 

Longitude: 149.54 

Location description and accuracy:

 The Center Star prospect is at an elevation of about 2,700 feet on the broad flat ridge 

between Costello Creek and Colorado Creek. It is in sec. 18, T. 19 S., R. 10 W., of the 

Fairbanks Meridian. Access to the Center Star prospect is from the road to the Dunkle 

Coal mine. The Center Star prospect may overlap with the Liberty prospect (HE028). Accuracy of location is to within 0.5 mile. 

Commodities: 

 Main: Au(?), Cu 

 Other: 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 Thick Quaternary glacial deposits and Upper Tertiary sedimentary strata cover most of 

the older bedrock in this area. Regionally, the main geologic feature is the northeasttrending Chulitna fault, which separates a sequence of Upper Jurassic to Upper Triassic

(?) crystal tuff, argillite, chert, graywacke, and limestone on the north, from Upper Devonian to Lower Triassic volcanogenic and sedimentary rocks on the south. Faulting and 

shearing of the rocks has occurred, along with intrusions of Late Cretaceous dikes and 

stocks. As reported by Capps (1919), the Center Star prospect consists of arsenopyrite, 

pyrite and chalcopyrite disseminated in bluish dike rock. 

Alteration:

 

Age of mineralization:

 Possibly Late Cretaceous or younger. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE027 
Alaska Resource Data File 

Page 56 

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Minor open cut workings. 

Production notes:

 

Reserves:

 

Additional comments:

 This site may overlap the Liberty prospect (HE028). 

References:

Capps, 1919; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE027 
Alaska Resource Data File 

Page 57 

Site name(s): Liberty 

Site type: Prospect 

ARDF no.: HE028 

Latitude: 63.263 Quadrangle: HE B-6 

Longitude: 149.538 

Location description and accuracy:

 The Liberty prospect is at an elevation of about 2,700 feet on the broad flat ridge between Costello Creek and Colorado Creek. It is in sec. 18, T. 19 S., R. 10 W., of the Fairbanks Meridian. Access to the prospect is from the road to the Dunkle Coal mine. The 

prospect is approximately 200 feet east of the road and approximately 500 feet south of 

the airstrip. The location is accurate to within 500 feet. This is locality 3 of Cobb (1978: 

OFR 78-1062). 

Commodities: 

 Main: Ag, Au 

 Other: 

Ore minerals: Arsenopyrite 

Gangue minerals: Quartz 

Geologic description:

 Thick Quaternary glacial deposits and Upper Tertiary sedimentary cover the older rocks 

in this area, which consist of Upper Jurassic to Upper Triassic(?) crystal tuff, argillite, 

chert, graywacke, and limestone. The older rocks are intruded by Late Cretaceous quartz 

diorite dikes, mainly along the nearby Chulitna fault (Wilson and others, 1998). The Liberty deposit consists of arsenopyrite-bearing quartz veins, reportedly in silicified limestone. Samples from trenches and pits contain 0.06-0.14 ounce of gold per ton and 1.2-

8.6 ounces of silver per ton (Ross, 1933). Hawley and others (1978) report values of 

0.005 to 0.06 ounce of gold per ton and traces of silver in samples from the same trenches 

sampled by Ross (1933). 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous (70-65 Ma) or younger, assuming deposit is related to the diorite dikes. 

HE028 
Alaska Resource Data File 

Page 58 

Deposit model:

Low-sulfide Au-quartz vein (Cox and Singer, 1987; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface trenching and pitting. Samples from trenches and pits contain 0.06-0.14 ounce 

of gold per ton and 1.2-8.6 ounces of silver per ton (Ross, 1933). Hawley and others 

(1978) report values of 0.005 to 0.06 ounce of gold per ton and traces of silver in samples 

from the same trenches sampled by Ross (1933). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Ross, 1933; Berg and Cobb, 1967; Hawley and Clark, 1974; Hawley and others, 1978; 

Cobb, 1978 (OFR 78-1062); Bundtzen, 1983; Salisbury and Dietz, 1984; Balen, 1990 

(OFR 34-90); Wilson and others, 1998. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE028 
Alaska Resource Data File 

Page 59 

Site name(s): Lucrata; Lucrative Group 

Site type: Prospect 

ARDF no.: HE029 

Latitude: 63.265 Quadrangle: HE B-6 

Longitude: 149.529 

Location description and accuracy:

 The Lucrata prospect is at an elevation of about 2,700 feet on the west bank of Costello 

Creek, about 0.3 mile south of the Dunkle mine camp. It is in sec. 18, T. 19 S., R. 10 W., 

of the Fairbanks Meridian. Accuracy of location is to within 500 feet. This is locality 2 

of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au 

 Other: Cu 

Ore minerals: Arsenopyrite, chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 The general area of this prospect is characterized by thick Quaternary glacial deposits 

and Upper Tertiary sedimentary strata that mostly cover Upper Jurassic to Upper Triassic

(?) crystal tuff, argillite, chert, graywacke, and limestone (Wilson and others, 1998). Upper Cretaceous quartz diorite dikes cut the mesozoic bedded rocks, mainly along the 

nearby Chulitna fault. At the Lucrata prospect, arsenopyrite-chalcopyrite pods up to 4 

feet thick and 5 feet long area in a quartz stockwork in gabbro and basalt along the Chulitna fault zone. Assay values as high as 1.26 ounces of gold per ton and 3.8 ounces of 

silver per ton are reported by Hawley and Clark (1974); average grades of 0.49 ounce of 

gold per ton and 1.03 ounces of silver per ton are reported by Bundtzen (1983). 

Alteration:

 Quartz-sericite-pyrite alteration. 

Age of mineralization:

 Late Cretaceous or younger, assuming that the deposit is related to the intrusion of the 

quartz diorite. 

Deposit model:

HE029 
Alaska Resource Data File 

Page 60 

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: Undetermined. 

Site Status: Active 

Workings/exploration:

 There has been both surface and underground exploration; a 15 ft tunnel was driven in 

1920. Assay values as high as 1.26 ounces of gold per ton and 3.8 ounces of silver per 

ton are reported by Hawley and Clark (1974); average grades of 0.49 ounce of gold per 

ton and 1.03 ounces of silver per ton are reported by Bundtzen (1983). 

Production notes:

 

Reserves:

 

Additional comments:

 The Lucrata prospect has also been referred to as the Dunkle mine. This should be 

dropped as it invites comparison to the Dunkle coal mine, a separate deposit. 

References:

Capps, 1919; Townsend, 1925; Ross, 1933; Berg and Cobb, 1967; Hawley and Clark, 

1968; Hawley and Clark, 1974; Cobb, 1978 (OFR 78-1062); Bundtzen, 1983; Balen, 

1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Ross, 1933 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE029 
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Page 61 

Site name(s): Eagle; Northern Light 

Site type: Prospect 

ARDF no.: HE030 

Latitude: 63.266 Quadrangle: HE B-6 

Longitude: 149.524 

Location description and accuracy:

 The Eagle prospect is at an elevation of about 2,800 feet on Costello Creek, about 0.3 

mile south-southwest of the Dunkle mine camp. It is near the east-central boundary of sec. 

18, T. 19 S., R. 11 W., of the Fairbanks Meridian. Access to the Eagle prospect is via the 

road to the Dunkle Coal Mine. The location is accurate within 500 feet. Published maps 

showing this prospect are Hawley and Clark (1974) and Hawley and others (1978). This 

is location 1 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au, Cu, Zn 

 Other: Sb 

Ore minerals: Arsenopyrite, chalcopyrite, sphalerite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 Thick Quaternary glacial deposits and Upper Tertiary sedimentary strata cover most of 

the older bedrock in this area. Regionally, the main geologic feature is the northeasttrending Chulitna fault, which separates a sequence of Upper Jurassic to Upper Triassic

(?) crystal tuff, argillite, chert, graywacke, and limestone on the north, from Upper Devonian to Lower Triassic volcanogenic and sedimentary rocks on the south. Faulting and 

shearing of the rocks has occurred, along with intrusions of Late Cretaceous dikes and 

stocks. The Eagle prospect is a 3-foot wide quartz vein that contains pods of arsenopyrite, chalcopyrite, sphalerite, and stibnite up to 1 foot wide. The vein is spatially associated with one or more dikes. The sulfide pods contain substantial Au and Ag values. 

Seven chip samples of the veins averaged 0.23 ounce of gold per ton and 4.55 ounces of 

silver per ton (Hawley and Clark, 1974; Ross, 1933; Bundtzen, 1983). The deposit is discontinuous, owing to post mineralization faulting and to pinch-and-swell structure of the 

vein. The Eagle vein is subparallel and about 400 feet east of the Lucrata segment of Upper Chulitna fault. 

Alteration:

HE030 
Alaska Resource Data File 

Page 62 

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: Undetermined. 

Site Status: Active 

Workings/exploration:

 Exploration includes a 62-foot tunnel and open cuts over a strike length of 300 to 800 

feet. 

Production notes:

 

Reserves:

 Estimated at 12,000 tons (Ross, 1933). 

Additional comments:

 Also see: Silver King (HE026), Liberty (HE028) and Lucrata (HE029). 

References:

Capps, 1919; Ross, 1933; Hawley and Clark, 1973; Berg and Cobb, 1967; Hawley and 

Clark, 1974; Cobb, 1978 (OFR 78-1062); Hawley and others, 1978; Bundtzen, 1983. 

Primary reference: Ross, 1933 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE030 
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Page 63 

Site name(s): Unnamed (on Costello Creek) 

Site type: Occurrence 

ARDF no.: HE031 

Latitude: 63.24 Quadrangle: HE A-6 

Longitude: 149.50 

Location description and accuracy:

 The map site of this placer occurrence is at an elevation of about 2,400 feet on Costello 

Creek. It is in sec. 29, T. 19 S., R. 10 W., of the Fairbanks Meridian. The site corresponds to loc. E-15 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Gold has been reported in an alluvial placer along Costello Creek, from its confluence 

with the Bull River upstream for about 2 miles. Costello Creek drains a atchment basin 

containing porphyry, skarn, polymetallic, and epithermal veins, all with significant gold 

contents. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Inactive 

HE031 
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Page 64 

Workings/exploration:

Minor surface workings show traces of gold in placer samples (Balen, 1990: OFR 34-90). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 34-90). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE031 
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Page 65 

Site name(s): Lookout Mountain 

Site type: Prospect 

ARDF no.: HE032 

Latitude: 63.222 Quadrangle: HE A-6 

Longitude: 149.570 

Location description and accuracy:

 This prospect is at an elevation of about 2,700 feet on the southeast flank of Lookout 

Mountain, approximately 0.4 mile south-southeast of the top of the mountain. This site is 

located in sec. 36, T. 19 S., R. 10 W., of the Fairbanks Meridian. The location is accurate 

within 1,000 feet. This is locality 13 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Pb, Zn 

 Other: Cu, Sn 

Ore minerals: Galena, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the prospect area are Upper Jurassic to Upper Triassic crystal tuff, 

argillite, graywacke and chert (Wilson and others, 1998). The strata are intruded by Upper Cretaceous or Lower Tertiary quartz porphyry and felsite. The deposit consists of argentiferous galena and sphalerite along fractures in a shear zone, in pipe breccias, and as 

disseminations in quartz porphyry. Scattered outcrops suggest that the quartz porphyry 

and felsite underlie an area about 1200 feet in diameter. Sulfides also are reported in 

breccia zones both in the intrusive and bedded rocks (Hawley and Clark, 1974). The 

breccias at Lookout Mountain are similar to those at the Golden Zone mine (HE043), but 

differ from then in containing more silver, lead, zinc, and tin. 

Alteration:

 Minor sericitic-phyllic reported. 

Age of mineralization:

 Late Cretaceous or younger, assuming that the deposit is related to the quartz porphyry 

and felsite. 

Deposit model:

HE032 
Alaska Resource Data File 

Page 66 

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Limited surface work and sampling has been carried out on this prospect. The area has 

been covered by regional and detailed geophysical surveys. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Hawley and Clark, 1974; Hawley and others, 1978; Cobb, 1978 

(OFR 78-1062); Balen, 1990 (OFR 34-90); Kurtak and others, 1992; Wilson and others, 

1998. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE032 
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Page 67 

Site name(s): Riverside 

Site type: Prospect 

ARDF no.: HE033 

Latitude: 63.24 Quadrangle: HE A-6 

Longitude: 149.61 

Location description and accuracy:

 The prospect is on the south bank of the West Fork Chulitna River, just upstream from 

the mouth of Bryn Mawr Creek. It is located in sec. 26, T.19 S., R. 11 W., of the Fairbanks Meridian. Accuracy is within 0.5 miles. 

This is location 7 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au 

 Other: Cu, Pb, Zn 

Ore minerals: Arsenopyrite, chalcopyrite, galena, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of the Riverside prospect are Triassic, redbed sandstone, 

conglomerate and limestone that have been intruded by a hornblende-quartz diorite dike. 

The deposit is in hornfelsed bedded rocks and consists chiefly of quartz-sulfide veins, and 

stockworks, and of sulfide disseminations. The sulfide minerals are arsenopyrite, chalcopyrite, galena, pyrite, pyrrhotite, and sphalerite. Small, sulfide-bearing skarn deposits 

are in marble adjacent to the dike (unpublished report by Addwest Minerals International 

Ltd., 1997). Samples contain 0.02 to 0.72 ounce of gold per ton and 0.3 to 2.10 ounces of 

silver per ton (Ross, 1933). The relatively high gold and silver values may be due to supergene enrichment. A fault may truncate the deposit to the south. The Riverside deposit 

is similar in mineralogy and type to other deposits satellitic to the Golden Zone deposit 

(HE043). 

Alteration:

 Narrow phyllic alteration haloes around and in porphyry dikes typically consists of 

sericite, quartz, and pyrite. In addition, skarn alteration minerals are garnet, pyroxene, and 

epidote. 

Age of mineralization:

HE033 
Alaska Resource Data File 

Page 68 

 Late Cretaceous (70 -65 Ma), assuming that the deposit is satellitic to the Golden Zone 

deposit (HE043). 

Deposit model:

Cu skarn; Polymetallic veins (Cox and Singer, 1986; models 18b, 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b, 22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Mainly surface workings. There are reports of a 10-foot tunnel and 15-foot shaft that 

are now caved. Recent geochemical exploration has identified a broad soil anomaly that 

outlines the deposit. Samples contain 0.02 to 0.72 ounce of gold per ton and 0.3 to 2.10 

ounces of silver per ton (Ross, 1933). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Townsend, 1925; Ross, 1933; Berg and Cobb, 1967; Hawley and Clark, 

1974; Cobb, 1978 (OFR 78-1062); Hawley and others, 1978. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE033 
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Page 69 

Site name(s): Jumbo 

Site type: Prospect 

ARDF no.: HE034 

Latitude: 63.24 Quadrangle: HE A-6 

Longitude: 149.61 

Location description and accuracy:

 The Jumbo prospect is at an elevation of about 2,200 feet on the south bank of the West 

Fork Chulitna River, about 0.5 mile from the junction of Bryn Mawr Creek. It is in sec. 

26, T. 19 S., R. 11 E., of the Fairbanks Meridian. The location is accurate to within 1 

mile. This is locality 7 of Cobb (1978: OFR 78-1062). According to Capps (1919), the 

Jumbo prospect adjoins the Riverside prospect (HE033). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 Bunches and specks of sulfides, mainly pyrrhotite along with some pyrite and chalcopyrite, are disseminated in Triassic conglomerate adjacent to a porphyry dike. The dike is 

similar in composition to the Upper Cretaceous porphyry at the Golden Zone mine 

(HE043). 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Cu porphyry (Cox and Singer, 1986; model 18a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18a 

Production Status: None 

HE034 
Alaska Resource Data File 

Page 70 

Site Status: Active 

Workings/exploration:

 Only open-cut surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Cobb, 1978 (OFR 78-1062). 

Primary reference: Capps, 1919 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE034 
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Page 71 

Site name(s): Pirate Creek 

Site type: Prospect 

ARDF no.: HE035 

Latitude: 63.24 Quadrangle: HE A-6 

Longitude: 149.62 

Location description and accuracy:

 The Pirate Creek prospect is on the south bank of the West Fork Chulitna River, about a 

mile upstream from the junction of Bryn Mawr Creek. The map site is at the west edge of 

sec. 26, T. 19 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 

half a mile. Also see Additional comments. 

Commodities: 

 Main: Ag, Au 

 Other: Sb 

Ore minerals: Arsenopyrite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at the Pirate Creek prospect are Permo-Triassic argillite and graywacke. The deposit consists of quartz veins containing arsenopyrite and stibnite. The 

veins contain up to 0.03 ounce of gold per ton as determined from trench samples. The 

veins are subparallel, and adjacent to a northeast-trending splay of the Zigzag Creek fault, 

suggesting a genetic relationship (unpublished report by Addwest Minerals International 

Ltd., 1997). The Pirate Creek deposit contains stibnite, which distinguishes it from other 

deposits in the area. 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous (70 - 65 Ma) or younger (HE043). 

Deposit model:

Polymetallic veins (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

HE035 
Alaska Resource Data File 

Page 72 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 The Pirate Creek claims group may overlap with either, or both, the Flaurier (HE036) 

and Jumbo (HE034) prospects. 

References:

Unpublished report by Addwest Minerals International Ltd., 1997. 

Primary reference: Unpublished report by Addwest Minerals International Ltd., 1997 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE035 
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Page 73 

Site name(s): Flaurier 

Site type: Prospect 

ARDF no.: HE036 

Latitude: 63.24 Quadrangle: HE A-6 

Longitude: 149.61 

Location description and accuracy:

 The Flaurier prospect is at an elevation of about 2,400 feet, on the south bank of the 

West Fork Chulitna River, about 0.5 mile upstream from the junction of Bryn Mawr 

Creek. This site is in sec. 26, T. 19 S., R. 11 W., of the Fairbanks Meridian. Access is 

via road to the Golden Zone mine (HE043). The location is accurate to within 1 mile. 

This is locality 7 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au 

 Other: Cu 

Ore minerals: Arsenopyrite, chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 Capps (1919) describes the Flaurier prospect as sulfide-bearing porphyry dikes that cut 

Triassic chert, argillite, tuff, and limestone. The dikes are similar in composition to those 

at the Golden Zone mine (HE043). The sulfide minerals are arsenopyrite and chalcopyrite, and they apparently are widely disseminated in the prospect area. Samples reportedly 

contain significant gold and silver values. 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous (70 -65 Ma). 

Deposit model:

Cu porphyry(?) (Cox and Singer, 1986; model 18a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18a(?) 

HE036 
Alaska Resource Data File 

Page 74 

Production Status: None 

Site Status: Active 

Workings/exploration:

 A few open cuts. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Cobb, 1978 (OFR 78-1062). 

Primary reference: Capps, 1919 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE036 
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Page 75 

Site name(s): Banner 

Site type: Prospect 

ARDF no.: HE037 

Latitude: 63.232 Quadrangle: HE A-6 

Longitude: 149.620 

Location description and accuracy:

 The Banner prospect is at an elevation of about 2,600 feet, about 1.1 mile southwest of 

the confluence of Bryn Mawr Creek and the West Fork of Chulitna River. It is in SE1/4 

sec. 27, T. 19 S., R. 10 W., of the Fairbanks Meridian. The location is accurate to within 

1,000 feet. This is locality 2-3 of Hawley and Clark (1974). 

Commodities: 

 Main: Ag, Au, Cu 

 Other: 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: Quartz, sericite 

Geologic description:

 In the area of the Banner prospect, the northeast-trending Banner fault separates unaltered Triassic sedimentary rocks on the southeast from strongly altered Triassic conglomerate, hornfels, and marble on the northwest. The altered rocks are cut by skarn zones extending 500 feet from the fault zone. The deposit consists of sulfide-bearing skarn and 

quartz-sericite veins that cut the skarn. Sulfides in the skarn zones vary in content, but 

average about 10%. They consist of arsenopyrite, pyrrhotite, pyrite, chalcopyrite 

(unpublished report by Addwest Minerals International Ltd., 1997). Copper content 

ranges up to 1% and gold values run 0.4 to 1 ounce per ton. The Banner skarn deposit 

probably is related to an apophysis of the Upper Cretaceous (70-65 Ma) porphyry plug at 

the Golden Zone mine (HE043). 

Alteration:

 Pyrite-quartz-sericite veins overprint earlier skarn calc-silicate assemblages that consist 

of epidote, pyroxene, actinolite, and occasional garnet. 

Age of mineralization:

 The skarns are probably related to an apophysis of the Upper Cretaceous (70-65 Ma) 

porphyry plug at the Golden Zone mine (HE043). The quartz-sericite veins may be TertiHE037 
Alaska Resource Data File 

Page 76 

ary. 

Deposit model:

Cu skarn and polymetallic veins (Cox and Singer, 1986; models 18b, 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b, 22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Workings consist of surface trenches and two holes drilled to a maximum depth of 300 

feet. Copper content ranges up to 1% and gold values run 0.4 to 1 ounce per ton. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and Clark, 1974; Hawley and others, 1978. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE037 
Alaska Resource Data File 

Page 77 

Site name(s): Lupin 

Site type: Prospect 

ARDF no.: HE038 

Latitude: 63.226 Quadrangle: HE A-6 

Longitude: 149.624 

Location description and accuracy:

 The Lupin prospect is at an elevation of about 2,800 feet, on the northwest bank of Bryn 

Mawr Creek. The map site is in the NE1/4 of sec. 34, T. 19 S., R. 11 W., of the Fairbanks 

Meridian. The location is accurate to within 1,000 feet. 

Commodities: 

 Main: Ag, Au 

 Other: As, Bi, Hg, Sb 

Ore minerals: Arsenopyrite, chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 The Lupin prospect is about 3,100 feet northeast of the Golden Zone mine (HE043). 

The country rocks at the prospect are faulted, Triassic redbed sedimentary rocks. The deposit consists of fault-controlled quartz veins containing arsenopyrite and chalcopyrite. 

The hostrocks adjacent to the veins are bleached and argillized (unpublished report by 

Addwest Minerals International Ltd., 1997). Drilling has identified sericitized dikes but 

their relation to the deposit is not clear. The Lupin deposit closely resembles the deposit 

at the Bunkhouse prospect (HE039). 

Alteration:

 Narrow zones adjacent to the veins are bleached and argillized. 

Age of mineralization:

 Late Cretaceous or younger (see HE043). 

Deposit model:

Polymetallic vein or hot-spring Ag-Au (Cox and Singer, 1986; model 22c, 25a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 25a 

HE038 
Alaska Resource Data File 

Page 78 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Trenching and one drill hole have been completed at the prospect. 

Production notes:

 

Reserves:

 

Additional comments:

 See Bunkhouse (HE039). 

References:

 

Primary reference: Unpublished report by Addwest Minerals International Ltd., 1997 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE038 
Alaska Resource Data File 

Page 79 

Site name(s): Bunkhouse 

Site type: Prospect 

ARDF no.: HE039 

Latitude: 63.223 Quadrangle: HE A-6 

Longitude: 149.639 

Location description and accuracy:

 The Bunkhouse prospect is at an elevation of about 2,950 feet, on the northwest bank of 

Bryn Mawr Creek. The map site is in the SW1/4 of sec. 34, T. 19 S., R. 11 W., of the 

Fairbanks Meridian. The location is accurate to within 1,000 feet. 

Commodities: 

 Main: Ag, Au 

 Other: As, Bi, Hg, Sb 

Ore minerals: Arsenopyrite, marcasite(?), pyrite 

Gangue minerals: Quartz 

Geologic description:

 The Bunkhouse prospect is about 2,500 feet north-northeast of the Golden Zone 

(HE043). The country rocks at the prospect are Triassic redbed sedimentary rocks, cut by 

the Bryn Mawr fault. The deposit consists of fault-controlled quartz stockwork veins and 

pods containing pyrite, arsenopyrite, and marcasite(?). The country rocks adjacent to the 

veins are bleached and argillized (unpublished report by Addwest Minerals International 

Ltd., 1997). Zones of disseminated sulfides up to 15 feet thick in the altered country rock 

contain up to 0.2 ounce of gold per ton (unpublished drill hole data). The Bunkhouse (and 

Lupin, HE038) deposits contain less base metals and more silver, arsenic, antimony, mercury and bismuth than the other deposits at and near the Golden Zone mine. Their ore 

mineralogy suggests an epithermal depositional environment. 

Alteration:

 Zones adjacent to the veins are bleached and argillized. 

Age of mineralization:

 The Bunkhouse deposit may postdate the Late Cretaceous - Early Tertiary deposit at the 

Golden Zone mine (HE043). 

Deposit model:

HE039 
Alaska Resource Data File 

Page 80 

Polymetallic vein or hot-spring Ag-Au (Cox and Singer, 1986; model 22c, 25a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 25a 

Production Status: None 

Site Status: Active 

Workings/exploration:

 The Bunkhouse deposit was discovered by trenching and soil sampling. Five drill holes, 

totaling 2100 feet, have tested the prospect to a depth of 500 feet (unpublished report by 

Addwest Minerals International Ltd., 1997). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

 

Primary reference: unpublished report by Addwest Minerals International Ltd., 1997 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE039 
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Page 81 

Site name(s): Mayflower 

Site type: Prospect 

ARDF no.: HE040 

Latitude: 63.216 Quadrangle: HE A-6 

Longitude: 149.643 

Location description and accuracy:

 The Mayflower prospect is at an elevation of about 3,400 feet, on the west side of Bryn 

Mawr Creek. It is in the NW1/4 of sec. 3, T. 20 S., R. 11 W., of the Fairbanks Meridian. 

The location is accurate to within 400 feet. 

Commodities: 

 Main: Ag, Au, Cu 

 Other: As, Pb, Sb, Zn 

Ore minerals: Arsenopyrite, chalcopyrite, galena, gold, pyrite, pyrrhotite, sphalerite, stibnite 

Gangue minerals: Ankerite, quartz 

Geologic description:

 The country rocks in the area of the Mayflower prospect include Devonian to Triassic 

clastic, carbonate, volcanic, and volcaniclastic strata, which are intruded by a plug and 

dikes of Upper Cretaceous (70-65 Ma) quartz diorite porphyry (Swainbank and others, 

1977). The Mayflower prospect is associated with a dikelike extension of the intrusive 

plug at the Golden Zone mine (HE043). Major faults trend northeast-southwest and have 

imparted a strong northeast-trending fabric to the host rocks. These faults have controlled 

the emplacement of intrusive rocks. At the Mayflower there is evidence that northwesttrending faults predated intrusion, as the dike trends northwest before swinging back to 

the northeast. The northwest-trending shear zone was also important during mineralization (unpublished report by Addwest Minerals International Ltd., 1997). 

 There are three types of deposits: sulfide disseminations, veins, and skarns. The dike 

contains disseminated sulfides and stockwork quartz-sulfide veinlets. Limonite and 

ankerite alteration is widespread. Adjacent to the dike, calc-silcate skarn bodies up to 15 

feet thick contain 0.1 ounce of gold per ton and 10% combined lead and zinc. The skarn 

comprises pyrrhotite, pyrite, chalcopyrite, and arsenopyrite (up to 10% by volume) in a 

epidote, garnet, and actinolite (unpublished report by Addwest Minerals International 

Ltd., 1997). 

Alteration:

HE040 
Alaska Resource Data File 

Page 82 

 Alteration consists of a combination of skarn (epidote, garnet and actinolite), silica 

flooding, ankerite, pyrite and sericite. Limonite and uncommon chalcocite are oxidation 

and supergene mineral assemblages. 

Age of mineralization:

 The Mayflower prospect is a satellite of the nearby Golden Zone mine (HE043) which 

has been dated at 70-65 Ma (Late Cretaceous) (Swainbank and others, 1977). 

Deposit model:

Combination of polymetallic vein and Au-Ag breccia pipe or Cu-Au porphyry (Cox and 

Singer, 1986; models 22c, 20c), with Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 20c, 18b 

Production Status: Undetermined. 

Site Status: Active 

Workings/exploration:

 The prospect was explored by a reconnaissance IP and CS-AMT survey and by 1,500 

feet of trenching. One shallow shaft was dug (during the 1930s?) and since has collapsed 

(Hawley and Clark, 1974). 

Production notes:

 

Reserves:

 

Additional comments:

 See Golden Zone mine (HE043). 

References:

Berg and Cobb, 1967; Mulligan and others, 1967; Hawley and Clark, 1974; Cobb, 1978 

(OFR 78-1062). 

Primary reference: unpublished report by Addwest Minerals International Ltd., 1997 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE040 
Alaska Resource Data File 

Page 83 

Site name(s): East Vein 

Site type: Prospect 

ARDF no.: HE041 

Latitude: 63.216 Quadrangle: HE A-6 

Longitude: 149.643 

Location description and accuracy:

 The East Vein prospect is at an elevation of about 3,400 feet in and adjacent to Bryn 

Mawr Creek. The site is in sec. 3, T. 20 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 400 feet. 

Commodities: 

 Main: Ag, Au, Cu, Pb, Zn 

 Other: 

Ore minerals: Arsenopyrite, chalcopyrite, galena, pyrite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at the East Vein prospect are hornfelsed Triassic red-bed sedimentary 

strata. The depositis a quartz stringer lode that strikes N30E, dips steeply to the northwest, and has a strike length of over 1,000 feet. The lode ranges from 1 to 3 feet wide and 

contains discontinuous pods of arsenopyrite, chalcopyrite, galena, pyrite, and sphalerite. 

In Bryn Mawr Creek the vein contains up to 80% sulfides. Inplaces, the vein is in gradational contact with country rock. Sulfide composition varies over short distances from 

arsenopyrite-rich to galena-sphalerite-rich zones. Vein samples assayed 0.01-0.90 ounce 

of gold per ton, 1.2-8.5 ounces of silver per ton, 0.15-0.73% copper, up to 1.8% lead, and 

up to 17% zinc (Mulligan and others, 1967). The East Vein prospect is about 500 feet 

east-northeast of the Golden Zone mine (HE043), and probably is an extension of that deposit. 

Alteration:

 The alteration is probably similar to that described for the adjacent Golden Zone and 

BLT, which consists of sericite, ankerite and quartz. 

Age of mineralization:

 Probably Late Cretaceous. 

HE041 
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Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 All surface exploration. Vein samples assayed 0.01-0.90 ounce of gold per ton, 1.2-8.5 

ounces of silver per ton, 0.15-0.73% copper, up to 1.8% lead, and up to 17% zinc 

(Mulligan and others, 1967). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Mulligan and others, 1967; Hawley and Clark, 1974; Hawley and others, 1978. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE041 
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Site name(s): Unnamed (upper Bryn Mawr Creek) 

Site type: Prospect 

ARDF no.: HE042 

Latitude: 63.21 Quadrangle: HE A-6 

Longitude: 149.64 

Location description and accuracy:

 This placer deposit is at an elevation of about 3,300 feet on upper Bryn Mawr Creek. It 

is in the NW1/4 of sec. 3, T. 20 S., R. 11 W., of the Fairbanks Meridian. The location is 

accurate to within 0.5 mile. This is locality 8 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The Bryn Mawr Creek placer prospect produced small amounts of gold in 1909 (Cobb, 

1978: OFR 78-1062). The source of the gold is the Golden Zone lode deposit (HE043), 

just upstream from the placer. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

Site Status: Inactive 

HE042 
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Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Capps, 1933; Ross, 1933; Mulligan and others, 1967; Cobb, 1973 (B 1374); 

Hawley and Clark, 1973; Hawley and Clark, 1974; Hawley and others, 1978; Cobb, 1978 

(OFR 78-1062); Balen, 1990 (OFR 34-90); Balen, 1990 (OFR 40-90); Kurtak and others, 

1992. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE042 
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Page 87 

Site name(s): Golden Zone 

Site type: Mine 

ARDF no.: HE043 

Latitude: 63.214 Quadrangle: HE A-6 

Longitude: 149.647 

Location description and accuracy:

 The Golden Zone mine is located at the headwaters of Bryn Mawr Creek, a tributary of 

the West Fork Chulitna River. The map site is at an elevation of about 3,500 feet, on the 

north bank of the creek, and about 2,000 feet southwest of the Golden Zone mine symbol 

on the topographic map. Access is via dirt road from Colorado Station along the north 

side of the West Fork Chulitna River to the junction with Bryn Mawr Creek. The road 

crosses the West Fork Chulitna River and climbs southwesterly to the mine site at an approximate elevation of 3,500 feet. The site is in the NW1/4 of sec. 3, T. 20 S., R. 11 W., 

of the Fairbanks Meridian. The location is accurate to within 1,000 feet. 

Commodities: 

 Main: Ag, Au 

 Other: Cu, Pb, Zn 

Ore minerals: Arsenopyrite, chalcopyrite, galena, pyrite, sphalerite, tetrahedrite 

Gangue minerals: Calcite, quartz, sericite 

Geologic description:

 The country rocks in the area of the Golden Zone mine include Devonian to Triassic 

clastic, carbonate, volcanic, and volcaniclastic strata, which are intruded by an Upper Cretaceous (70-65 Ma) biotite-quartz diorite porphyry plug (Swainbank and others, 1977). 

The Golden Zone is the most significant deposit in the southwest portion of the Healy 

quadrangle. The deposit consists mostly of a single breccia pipe that measures 250 by 300 

feet at the surface and thins downward. The contacts are steeply dipping except on the 

northern side where the dips appear to flatten to the north. Drilling has confirmed that the 

pipe reaches a depth of 650 feet and possibly as deep as 1,500 feet. The pipe is almost entirely contained within a biotite-quartz diorite porphyry plug measuring 600 by 1,000 feet. 

The breccia pipe was produced by magmatic devolatilization either from the diorite porphyry or from a related intrusion at depth. Both the breccia and the porphyry have been 

dated at 65-70 Ma (Swainbank and others, 1977). Major faults in the area trend northeastsouthwest and have imparted a strong northeast trending fabric to the host rocks. Differential motion along these faults has localized the subsequent emplacement of the biotiteHE043 
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Page 88 

quartz diorite porphyry and mineralizing fluids. Postmineral northwest-trending faults cut 

the breccia (unpublished report by Addwest Minerals International, Ltd, 1997). Early 

brecciation produced angular clasts cemented by vuggy, pale-gray quartz and minor 

amounts of arsenopyrite, pyrite, pyrrhotite, chalcopyrite and sphalerite. Several younger, 

sulfide-dominated events have overprinted the earlier, relatively barren, quartz-dominated 

brecciation, producing breccias containing over 10% sulfides. These younger breccias can 

be subdivided into arsenic-rich zones (earliest) and copper-rich zones (late); the former 

contains better gold grades - in places up to 5 ounces of gold per ton. 

Alteration:

 Alteration and mineral zonation is present around the Golden Zone pipe. A distal lead 

and zinc halo is reported up to 2 miles from the pipe; the gold/silver ratios in arsenopyrite and chalcopyrite show a systematic variation; and red-bed sediments show widespread bleaching (C.C. Hawley, oral communication, 1999). Propylitic haloes consisting 

of epidote-carbonate-chlorite are present at the margin of the quartz diorite stock, and 

hornfels-skarn zones are in carbonate-rich country rock. Sericite is the dominant alteration mineral in the breccias, and argillic overprinting (?), quartz flooding and Fecarbonates are also reported, but their paragenesis is as yet unclear. 

Age of mineralization:

 The Golden Zone is a magma-driven breccia pipe. Both the intrusion and the breccia 

minerals are Late Cretaceous (70-65 Ma) in age (Swainbank and others, 1977). 

Deposit model:

Polymetallic vein and Au-Ag breccia pipe or Cu-Au porphyry (Cox and Singer, 1986; 

models 22c, 20c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 20c 

Production Status: Yes; small 

Site Status: Active 

Workings/exploration:

 There are both surface and underground workings at the Golden Zone mine. Exploration between 1936 and 1996 included 54,326 feet of drilling in 137 drill holes (102 core 

and 35 reverse circulation holes). Numerous trenches and geochemistry samples have 

been collected. 1,900 feet of underground development has accumulated on the 100, 200 

and 500 foot levels. Close-spaced helicopter aeromagnetic and EM geophysical surveys 

have been flown over the mine, along with some ground-based IP work (unpublished report by Addwest Minerals International Ltd., 1997). The State of Alaska sponsored an 

aeromagnetic survey in 1996 that included the mine site in 1996 (Burns, 1997). 

 Sulfide-dominated events have overprinted the earlier, relatively barren, quartzdominated brecciation, producing breccias containing over 10% sulfides. These younger 

breccias can be subdivided into arsenic-rich zones (earliest) and copper-rich zones (late); 

HE043 
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Page 89 

the former contains better gold grades - in places up to 5 ounces of gold per ton. 

Production notes:

 The mine produced 49,169 grams of gold, 267,990 grams of silver, and 19 tonnes of 

copper between 1941 and 1942 (Hawley and Clark, 1974). 

Reserves:

 The proven and probable reserves of the breccia pipe and surrounding prospect are 8 

million tons containing 0.1 ounce of gold per ton (at a cutoff of 0.02 ounce of gold per 

ton), or about 800,000 ounces of gold. 

Additional comments:

 

References:

Capps, 1919; Capps, 1924; Capps, 1933; Ross, 1933; Wells, 1956; Berg and Cobb, 1967; 

Mulligan and others, 1967; Hawley and Clark, 1968; Hawley and others, 1968; Clark and 

Cobb, 1972; Hawley and Clark, 1974; Swainbank and others, 1977; Hawley and others, 

1978; Cobb, 1978 (OFR 78-1062); Eakins and others, 1985; Nokleberg and others, 1987; 

Balen, 1990 (OFR 34-90); Balen, 1990 (OFR 40-90); Kurtak and others, 1992; Nokleberg 

and others, 1994; Burns, 1997. 

Primary reference: Hawley and others, 1978 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE043 
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Site name(s): BLT 

Site type: Prospects 

ARDF no.: HE044 

Latitude: 63.213 Quadrangle: HE A-6 

Longitude: 149.651 

Location description and accuracy:

 The BLT prospect is at an elevation of about 3,650 feet on the west bank of the head of 

Bryn Mawr Creek, a northeast-flowing tributary of the West Fork Chulitna River. The 

map site is on the east edge of sec. 4, T. 20 S., R. 11 W., of the Fairbanks Meridian. Access is via dirt road from Colorado Station along the north side of the West Fork Chulitna 

River to the junction with Bryn Mawr Creek. The road crosses the West Fork Chulitna 

River and climbs southwesterly to the Golden Zone mine (HE043), which adjoins the 

BLT prospect on the north. The location is accurate to within 1,000 feet. 

Commodities: 

 Main: Ag, Au 

 Other: Cu, Pb, Zn 

Ore minerals: Arsenopyrite, chalcopyrite, galena, sphalerite, tetrahedrite 

Gangue minerals: Ankerite, calcite, marcasite, quartz, sericite 

Geologic description:

 BLT is the name given to the prospect that includes the Blind, Little, and Tunnel veins 

near the Golden Zone mine (HE043) (C.C. Hawley, oral communication, 1999). The 

veins and a strongly altered mafic dike are in a shear zone that defines the southeast margin of the Golden Zone porphyry. The shear zone and mafic dike cut Triassic redbed 

sandstone, conglomerate, limestone, and volcanoclastic rocks. The shear zone-dike (BLT 

zone) also cuts the quartz-biotite porphyry associated with the Golden Zone breccia pipe. 

The BLT prospect consists of early, arsenopyrite-rich quartz veins, followed by quartzcarbonate-sulfide veins, stockwork zones, and massive sulfide lenses. The veins are colloform and banded, indicating an epithermal depositional environment. Sulfide phases in 

the BLT differ from those in the Golden Zone, in that they contain more pyrite and marcasite, more lead and zinc, and less copper. Only the younger, sulfide-quartz-carbonate 

veins that locally cut the arsenopyrite-rich veins contain free gold. The arsenopyrite-rich 

veins probably correlate with the Upper Cretaceous veins at the Golden Zone mine 

(unpublished report by Addwest Minerals International Ltd., 1997). 

HE044 
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Alteration:

 Clays, ankerite/calcite, and quartz are the dominant alteration assemblages in the mafic 

dikes. 

Age of mineralization:

 Late Cretaceous and younger. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Underground work encountered the Blind Vein in the 1970's. 19 drill holes (totalling 

over 6,000 feet) have been completed up to the present (1999), along with widespread 

trenching and soil geochemistry grids. Closely-spaced helicopter aeromagnetic and EM 

geophysical surveys have been flown over this prospect. The State of Alaska flew a more 

widely-spaced helicopter aeromagnetic survey in 1996 (Burns, 1997). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Ross, 1933; Wells, 1956; Berg and Cobb, 1967; Mulligan and others, 1967; Hawley and 

Clark, 1974; Hawley and others, 1978. 

Primary reference: Hawley and others, 1978 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE044 
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Site name(s): Little Vein; Little Lead 

Site type: Prospect 

ARDF no.: HE045 

Latitude: 63.213 Quadrangle: HE A-6 

Longitude: 149.647 

Location description and accuracy:

 The Little Vein prospect is at an elevation of about 3,500 feet, on the southeast bank of 

Bryn Mawr Creek. The site is in sec. 3, T. 20 S., R. 11 W., of the Fairbanks Meridian. 

The location is accurate to within 500 feet. 

Commodities: 

 Main: Ag, Au, Cu 

 Other: 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The Little Vein prospect is about 200 feet south of the Golden Zone breccia pipe 

(HE043). It is a quartz-sulfide vein and stringer lode that carries good, but erratic, gold 

values. The deposit is at the sheared contact of a quartz-biotite porphyry dike that intrudes hornfelsed Triassic sedimentary rocks. The sulfide minerals are arsenopyrite, pyrite, and chalcopyrite. Assay values range from 0.16 to 2.58 ounces of gold per ton, 2.4 to 

11.6 ounces of silver per ton , and up to 33.22% arsenic (Ross, 1933). The Little Vein deposit probably is a continuation of the deposit at the Golden Zone mine. 

Alteration:

 Sericitization. 

Age of mineralization:

 Synchronous with the Golden Zone mineralization, dated as Late Cretaceous. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

HE045 
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Page 93 

Production Status: None 

Site Status: Active 

Workings/exploration:

 There has been limited exploration by prospect pits and a short, now caved adit. Assay 

values range from 0.16 to 2.58 ounces of gold per ton, 2.4 to 11.6 ounces of silver per 

ton , and up to 33.22% arsenic (Ross, 1933). 

Production notes:

 

Reserves:

 

Additional comments:

 The Little Vein was reached from underground workings at the Golden Zone mine. 

References:

Ross, 1933; Berg and Cobb, 1967; Hawley and Clark, 1974. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE045 
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Page 94 

Site name(s): Lindfors 

Site type: Prospect 

ARDF no.: HE046 

Latitude: 63.208 Quadrangle: HE A-6 

Longitude: 149.653 

Location description and accuracy:

 The Lindfors prospect is at an elevation of about 3,900 feet on the divide at the head of 

Bryn Mawr Creek. It is in the SE1/4 of sec. 4, T. 20 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 500 feet. This is location 11 of Cobb (1978: 

OFR 78-1062). 

Commodities: 

 Main: Au, Cu, Zn 

 Other: Pb, Sb 

Ore minerals: Arsenopyrite, chalcopyrite, galena, pyrite, sphalerite, tetrahedrite 

Gangue minerals: Quartz 

Geologic description:

 The Lindfors prospect is about 1,500 feet south-southwest of the Golden Zone mine 

(HE043). The country rocks at the prospect are Permo-Triassic redbed sandstones, conglomerates, limestones and volcanoclastic sediments, which are intruded by Upper Cretaceous quartz diorite dikes. The deposit consists of quartz veins containing arsenopyrite, 

chalcopyrite, galena, pyrite, sphalerite, and tetrahedrite. Surface geochemistry values of 

0.2 to 14 ppm gold, high silver, arsenic, lead, antimony and zinc have been reported 

(Hawley and Clark, 1974). The Lindfors deposit probably is a continuation of the deposit 

at the Golden Zone mine. 

Alteration:

 Quartz, sericite?, and pyrite. 

Age of mineralization:

 Synchronous with the Golden Zone mineralization, dated as Late Cretaceous. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

HE046 
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Page 95 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 One drill hole has explored the Lindfors zone at depth; there is a report of a shallow 

shaft, now collapsed, dug in the 1920's. Surface exploration consists of numerous pits and 

trenches. Close-spaced helicopter aeromagnetic and EM geophysical surveys have been 

flown over this prospect. In 1996, the State of Alaska flew a wider-spaced helicopter 

aeromagnetic survey that included this prospect (Burns, 1997). 

 Surface geochemistry values of 0.2 to 14 ppm gold, high silver, arsenic, lead, antimony 

and zinc have been reported (Hawley and Clark, 1974). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Ross, 1933; Hawley and others, 1968 (OFR 68-305); Hawley and Clark, 

1974; Cobb, 1978 (OFR 78-1062). 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE046 
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Page 96 

Site name(s): Silverdikes 

Site type: Occurrence 

ARDF no.: HE047 

Latitude: 63.21 Quadrangle: HE A-6 

Longitude: 149.61 

Location description and accuracy:

 The Silverdikes prospect is at an elevation of about 2,900 feet, about 1.7 miles southwest of Lookout Mountain. The map site is in the SW1/4 of sec. 2, T. 20 S., R. 11 W., of 

the Fairbanks Meridian. The location is accurate to within one mile. 

Commodities: 

 Main: Ag 

 Other: Pb, Zn 

Ore minerals: Galena, pyrite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The Silverdikes prospect is on the Chulitna fault. The country rocks are Upper Jurassic 

to Upper Triassic crystal tuff, argillite, graywacke, and chert, cut by Upper Cretaceous or 

Lower Tertiary, fine-grained quartz porphyry dikes. The deposit apparently consists of galena- and sphalerite-bearing quartz veins, but their hostrock is not specified. The dikes 

contain disseminated pyrite. Geochemically anomalous silver, lead and zinc values are 

reported (unpublished report, Addwest Minerals International, Ltd, 1997). The Silverdikes prospect closely resembles the deposit at Lookout Mountain (HE032). 

Alteration:

 Minor sericitic-phyllic alteration reported. 

Age of mineralization:

 Late Cretaceous or younger. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

HE047 
Alaska Resource Data File 

Page 97 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 Also see Lookout Mountain (HE032). 

References:

Unpublished report, Addwest Minerals International, Ltd, 1997. 

Primary reference: Unpublished report, Addwest Minerals International, Ltd, 1997 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE047 
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Page 98 

Site name(s): Unnamed (upper Blind Creek area) 

Site type: Occurrence 

ARDF no.: HE048 

Latitude: 63.212 Quadrangle: HE A-6 

Longitude: 149.692 

Location description and accuracy:

 This occurrence is at an elevation of about 3,800 feet south of upper Blind Creek, a 

tributary of the West Fork Chulitna River. It is in the NE1/4 of sec. 5, T. 20 S., R. 11 W., 

of the Fairbanks Meridian. Accuracy is to within 1,000 feet. The site is shown in Hawley 

and Clark (1968), and Hawley and Clark (1974). 

Commodities: 

 Main: Ag, Au 

 Other: 

Ore minerals: Gold?, pyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this occurrence are Triassic sedimentary strata that have 

been strongly faulted along a strand of the Blind Creek fault. The fault zone is up to 200 

feet wide and approximately 3000 feet long; it is locally pyritized and limonite stained. 

The deposit consists of quartz-pyrite veins. The quartz is colloform in places. Surface 

samples from a quartz vein contained 0.06 ppm to 0.30 ppm gold and 0.5 to 1.5 ppm silver (Hawley and Clark, 1968). 

Alteration:

 Pyritization; iron-staining. 

Age of mineralization:

 

Deposit model:

Polymetallic vein or Hot-spring Ag-Au (Cox and Singer, 1986; models 22c, 25a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 25a 

HE048 
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Page 99 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface samples only. Surface samples from a quartz vein contained 0.06 ppm to 0.30 

ppm gold and 0.5 to 1.5 ppm silver (Hawley and Clark, 1968). 

Production notes:

 

Reserves:

 

Additional comments:

 This deposit is similar in some ways to the Bunkhouse and Lupin deposits (HE039 and 

HE038). 

References:

Hawley and Clark, 1968; Hawley and Clark, 1974. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE048 
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Page 100 

Site name(s): Copper King; Hector Group 

Site type: Prospect 

ARDF no.: HE049 

Latitude: 63.196 Quadrangle: HE A-6 

Longitude: 149.655 

Location description and accuracy:

 The Copper King prospect is at an elevation of about 3,500 feet near the head of Long 

Creek. The site is near the east boundary of sec. 9 , T. 20 S., R. 11 W., of the Fairbanks 

Meridian. The location is accurate to within 0.25 mile. 

Commodities: 

 Main: Ag, Au, Cu 

 Other: Mo, Zn 

Ore minerals: Chalcopyrite, molybdenite, pyrite, pyrrhotite 

Gangue minerals: Quartz, skarn minerals 

Geologic description:

 Copper King is primarily a skarn prospect. The country rocks are hornfelsed PermoTriassic calcareous siltstone and conglomerate that are intruded by Upper Cretaceous(?) 

quartz porphyry dikes. The deposit consists chiefly of massive chalcopyrite, pyrite, and 

pyrrhotite in a skarn zone 20 to 40 feet thick exposed for about 200 feet at the surface. 

Subsidary zones of quartz stockwork veining and of sulfide disseminations also occur 

(unpublished report by Addwest Minerals International Ltd., 1997). The pattern of mineralization suggests a zonal distribution of Cu around quartz porphyry intrusions. This is the 

only prospect in the district explored primarily for copper, and is also the only prospect in 

the area where arsenopyrite has not been found (Hawley and Clark, 1974). In addition, 

molybdenite is more abundant here than at the other prospects. Samples taken at various 

times contain as much as 7.34% copper, 4.9 ounces of silver per ton, and 0.22 ounce of 

gold per ton (Cobb, 1978: OFR 78-1062). 

Alteration:

 Skarn zones contain diopside, epidote, sericite, and anhydrite. 

Age of mineralization:

 Late Cretaceous(?). 

HE049 
Alaska Resource Data File 

Page 101 

Deposit model:

Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Workings include soil grids, 1,500 feet of trenching and 9 drill holes with over 1,700 

feet completed. A limited, ground-based TEM survey has also been used to outline skarn 

zones. Samples taken at various times contain as much as 7.34% copper, 4.9 ounces of 

silver per ton, and 0.22 ounce of gold per ton (Cobb, 1978: OFR 78-1062). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Ross, 1933; Berg and Cobb, 1967; Hawley and Clark, 1968; Clark and 

Cobb, 1972; Hawley and Clark, 1974; Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 34-

90); Kurtak and others, 1992. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE049 
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Page 102 

Site name(s): Long Creek 

Site type: Prospect 

ARDF no.: HE050 

Latitude: 63.18 Quadrangle: HE A-6 

Longitude: 149.67 

Location description and accuracy:

 The Long Creek prospect is at an elevation of 3,700 feet, about a mile west of Long 

Creek approximately 7 miles upstream from its junction with the West Fork Chulitna 

River. The map site is near the center of sec. 16, T. 20 S., R. 11 W., of the Fairbanks Meridian. This is locality 15 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au, Cu, Pb, Zn 

 Other: 

Ore minerals: Arsenopyrite, chalcopyrite, galena, pyrite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 This prospect is near the faulted contact between Devonian mafic intrusive rocks and 

Upper Devonian to Lower Triassic tuffaceous chert, volcanic conglomerate, graywacke 

and shale, and limestone (Wilson and others, 1998). Both units are intruded by Upper 

Cretaceous (?) porphyry dikes. The deposit consists of massive quartz-arsenopyrite veins 

that also contain minor amounts of galena, sphalerite, pyrite and chalcopyrite. In addition 

to the veins, rocks also contain up to 2% disseminated sulfides in a 600- feet by 300-foot 

area. 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous (?) or younger, assuming that the deposit is related to the diorite dikes. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE050 
Alaska Resource Data File 

Page 103 

22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Surface trenches and soil grids. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Ross, 1933; Hawley and others, 1969; Clark and Cobb, 1972; Hawley and Clark, 1973; 

Hawley and Clark, 1974; Cobb, 1978 (OFR 78-1062); Hawley and others, 1978; Kurtak 

and others, 1988; Balen, 1990 (OFR 34-90); Kurtak and others, 1992; Wilson and others, 

1998. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE050 
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Page 104 

Site name(s): Unnamed (south of upper Long Creek) 

Site type: Prospect 

ARDF no.: HE051 

Latitude: 63.18 Quadrangle: HE A-6 

Longitude: 149.69 

Location description and accuracy:

 This prospect is at an elevation of 400 feet south of upper Long Creek. The site is in 

sec. 17, T. 20 S., R. 11 W., of the Fairbanks Meridian. The location is accurate to within 

1 mile. This is loc. 12 of Hawley and others (1969); loc. 35 of Hawley and Clark (1974). 

Commodities: 

 Main: Au, Cu 

 Other: Cr, Ni, Pt 

Ore minerals: Chalcopyrite, chromite?, pyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this prospect consist largely of sheared, Devonian serpentinite that forms lenticular and podiform tectonic blocks as much as several hundred 

meters in size. The deposit is in serpentinite, and consists of pyrite-rich pods, locally accompanied by chalcopyrite and gold-rich zones. Local high platinum, chrome, and nickel 

values have also been reported. Samples contain up to 0.3 ppm gold, 1,500 ppm chromium, 3,000 ppm copper, 1,500 ppm nickel, and a trace of platinum (Hawley and others, 

1969). 

Alteration:

 

Age of mineralization:

 The copper and chromium minerals probably were syngenetic with their Devonian ultramafic hostrock, and may have been partly redistributed during serpentinization. 

Deposit model:

Podiform chromite (Cox and Singer, 1986; model 8a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

8a 

HE051 
Alaska Resource Data File 

Page 105 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. Local high platinum, chrome, and nickel values have also been 

reported. Samples contain up to 0.3 ppm gold, 1,500 ppm chromium, 3,000 ppm copper, 

1,500 ppm nickel, and a trace of platinum (Hawley and others, 1969). 

Production notes:

 

Reserves:

 None of the sulfide bodies appears to be of any significant size. 

Additional comments:

 

References:

Hawley and others, 1969; Hawley and Clark, 1974. 

Primary reference: Hawley and others, 1969 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE051 
Alaska Resource Data File 

Page 106 

Site name(s): Alaska Jupiter 

Site type: Prospect 

ARDF no.: HE052 

Latitude: 63.16 Quadrangle: HE A-6 

Longitude: 149.67 

Location description and accuracy:

 The Alaska Jupiter prospect is at an elevation of about 3,800 feet, on the north side of a 

divide between upper Copeland and Long creeks. The map site is in the SW1/4 of sec. 21, 

T. 20 S., R. 11 W., of the Fairbanks Meridian. The accuracy is of the location is within 

1.5 miles. This is location E-26 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Arsenopyrite? 

Gangue minerals: Quartz? 

Geologic description:

 The country rocks at the Alaska Jupiter prospect include Upper Jurassic to Upper Triassic crystal tuff, argillite, graywacke and chert, and Upper Cretaceous (?) porphyry dikes. 

The rocks are cut by the Chulitna fault. The deposit is along the fault, and consists of 

quartz-arsenopyrite veins that cut both the bedded and intrusive rocks. Samples contain 

gold near the 5 ppb detection limits of the analysis (Balen, 1990: OFR 34-90). 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Low-sulfide Au-quartz vein(?) (Cox and Singer, 1986; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a 

Production Status: None 

HE052 
Alaska Resource Data File 

Page 107 

Site Status: Active? 

Workings/exploration:

 There has only been surface sampling. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE052 
Alaska Resource Data File 

Page 108 

Site name(s): Copper Kitty 

Site type: Prospect 

ARDF no.: HE053 

Latitude: 63.15 Quadrangle: HE A-6 

Longitude: 149.71 

Location description and accuracy:

 The Copper Kitty prospect is at an elevation of about 3,000 feet on the west wall of the 

valley of upper Copeland Creek. The map site is about 7 miles north of the junction of 

Copeland and Ohio creeks, in the Sw1/4 of sec. 29, T. 20 S., R. 11 W., of the Fairbanks 

Meridian. The location is accurate to within 0.5 mile. This is location E-28 of Balen 

(1990: OFR 34-90). 

Commodities: 

 Main: Ag, Cu 

 Other: Au(?), Cr 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the area of the Copper Kitty prospect are a tectonically mixed assemblage of Upper Devonian serpentinite, and subordinate basalt, chert, and gabbro. The 

deposit reportedly consists of pods of unspecified sulfide minerals, locally containing 

copper, gold(?) and silver (Balen, 1990: OFR 34-90). The hostrocks of the sulfide minerals also are not specified. Chromite apparently also occurs, presumably as magmatic segregations in the ultramafic rocks. 

Alteration:

 

Age of mineralization:

 The (presumed) magmatic segregation are syngenetic with the Upper Devonian ultramafic host rocks. 

Deposit model:

Podiform chromite(?), Cyprus massive sulfide(?) (Cox and Singer, 1986; model 8a, 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE053 
Alaska Resource Data File 

Page 109 

8a(?), 24a(?) 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 There has been surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE053 
Alaska Resource Data File 

Page 110 

Site name(s): Silver Kitty; Christy; Copeland Creek 

Site type: Prospect 

ARDF no.: HE054 

Latitude: 63.164 Quadrangle: HE A-6 

Longitude: 149.786 

Location description and accuracy:

 The Silver Kitty prospect is at an elevation of about 5,500 feet, above the north head of 

Christy Creek. The site is in the SE1/4 of sec. 23, T. 20 S., R. 12 W., of the Fairbanks 

Meridian. Accuracy of location is within 0.25 miles. This is locality 9-12 of Hawley and 

others (1969); and locality 27 of Hawley and Clark (1974). 

Commodities: 

 Main: Ag, Au, Cu 

 Other: Zn 

Ore minerals: Chalcopyrite, sphalerite 

Gangue minerals: Quartz, skarn minerals 

Geologic description:

 The Silver Kitty prospect is hosted in Lower Jurassic and Upper Triassic redbed sandstone and argillite. An Upper Cretaceous quartz diorite porphyritic stock cuts the argillite. 

The prospect consists of chalcopyrite- and sphalerite-bearing skarn adjacent to the stock 

(Hawley and Clark, 1974), along with some disseminated sulfides. Samples contain 0.4 

ounce of gold per ton and 1.8% copper (Balen, 1990: OFR 34-90). 

Alteration:

 Skarn related. 

Age of mineralization:

 Probably Late Cretaceous. 

Deposit model:

Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b 

HE054 
Alaska Resource Data File 

Page 111 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Clark and Cobb, 1972; Hawley and Clark, 1974; Balen, 1990 

(OFR 34-90); Kurtak and others, 1992. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE054 
Alaska Resource Data File 

Page 112 

Site name(s): Canyon Creek 

Site type: Prospect 

ARDF no.: HE055 

Latitude: 63.16 Quadrangle: HE A-6 

Longitude: 149.86 

Location description and accuracy:

 The Canyon Creek prospect is at an elevation of about 4,700 feet on a spur west of upper Canyon Creek, a northern tributary to Ohio Creek. The map site is at the north-central 

boundary of sec. 28, T. 20 S., R. 12 W., of the Fairbanks Meridian. This is locality 19 of 

Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au, Cu, Pb 

 Other: Sn 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite, tetrahedrite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The country rocks in the area consist of several hundred meters of Triassic limestone 

and marble interbedded with basalt, metachert, and argillite. The strata are intruded by 

quartz diorite porphyry dikes of probable Late Cretaceous to Early Tertiary age and by 

Tertiary tourmaline-bearing granite. The Canyon Creek deposit in in the Upper triassic 

rocks, and consists of quartz-calcite veins containing arsenopyrite, chalcopyrite, pyrite 

and tetrahedrite. Rock chip samples contain up to 0.4 ppm gold and 500 ppm silver, 

along with consistently high Sn values. 

 The Canyon Creek deposit is part of an area of sulfide deposits 2.5 miles long and 1 

mile wide along and near Canyon Creek. The Canyon Creek prospect is in the northern 

part of this area. The Ready Cash prospect (HE057) is in southern part. 

Alteration:

 

Age of mineralization:

 Late Cretaceous or younger, assuming that the deposit is related to the intrusive rocks. 

Deposit model:

Polymetallic veins (Cox and Singer, 1986; model 22c) 

HE055 
Alaska Resource Data File 

Page 113 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Surface exploration only. Rock chip samples contain up to 0.4 ppm gold and 500 ppm 

silver, along with consistently high Sn values. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Hawley and Clark, 1974. 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE055 
Alaska Resource Data File 

Page 114 

Site name(s): Unnamed (head of Ohio Creek) 

Site type: Prospect 

ARDF no.: HE056 

Latitude: 63.19 Quadrangle: HE A-6 

Longitude: 149.93 

Location description and accuracy:

 The prospect is at an elevation of about 3,500 feet at the northwest edge of the glacial 

moraine at the head of Ohio Creek. The site is on the boundary of secs. 7 and 18, T. 20 S., 

R. 12 W., of the Fairbanks Meridian. The accuracy of the location is within 0.5 mile. This 

is locality 18 of Cobb (1978, OFR 78-1062). 

Commodities: 

 Main: Ag, Sn 

 Other: Au, Cu, Nb, Ta, W, Zn 

Ore minerals: Arsenopyrite, cassiterite, gold?, wodginite 

Gangue minerals: Feldspar, muscovite, quartz, tourmaline 

Geologic description:

 The host rock at this prospect is Upper Cretaceous to Upper Jurassic, intensely deformed and locally highly metamorphosed flysch which is several thousand meters thick 

(Wilson and others, 1998). The strata have been intruded by a granitic stock 1 mile long 

by 0.5 mile wide. The deposit consists of tourmaline and muscovite greisen and quartzarsenopyrite veins. The greisen is up to 10 feet thick. It adjoins a biotite-rich inclusion at 

least 150 feet long, and locally contains 0.1% Sn (Hawley and others, 1969). The upper 3 

to 10 feet of the granitic body contains pegmatitic quartz-arsenopyrite veins that parallel 

the contact with country rock (Hawley and Clark, 1974). The veins also contain wodginite, a manganese-tin-niobium oxide, and 1.25% tungsten, 147 ounces of silver per ton 

and traces of tin, lead, and copper (Hawley and others, 1978). 

Alteration:

 Greisenization. 

Age of mineralization:

 Late Cretaceous or younger. 

Deposit model:

HE056 
Alaska Resource Data File 

Page 115 

Sn greisen (Cox and Singer, 1986; model 15c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

15c 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 There has been minor surface exploration. Veins contain wodginite, a manganese-tinniobium oxide, and 1.25% tungsten, 147 ounces of silver per ton and traces of tin, lead, 

and copper (Hawley and others, 1978). 

Production notes:

 

Reserves:

 

Additional comments:

 Stream sediment samples taken from area adjacent to granitic stock suggest undiscovered vein deposits in country rock. 

References:

Capps, 1919; Capps, 1924; Ross, 1933; Hawley and others, 1969; Clark and Cobb, 1972; 

Hawley and Clark, 1974; Hawley and others, 1978; Cobb, 1978 (OFR 78-1062); Balen, 

1990 (OFR 34-90); Nokleberg and others, 1994; Wilson and others, 1998. 

Primary reference: Hawley and others, 1978 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE056 
Alaska Resource Data File 

Page 116 

Site name(s): Ready Cash 

Site type: Prospect 

ARDF no.: HE057 

Latitude: 63.15 Quadrangle: HE A-6 

Longitude: 149.86 

Location description and accuracy:

 The Ready Cash prospect is at an elevation of about 2,700 feet on Canyon Creek, a 

northern tributary to Ohio Creek. The map site is in the SW1/4 of sec. 28, T. 20 S., R. 12 

W., of the Fairbanks Meridian. This is locality 21 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au, Cu, Pb, Sn, Zn 

 Other: Sb 

Ore minerals: Argentite, arsenopyrite, cassiterite, chalcopyrite, covellite, galena, pyrite, pyrrhotite, sphalerite, tennantite, tetrahedrite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The country rocks in the area of the Ready Cash prospect consist of several hundred 

meters of Upper Triassic interbedded limestone, marble, basalt, metachert, and argillite. 

The strata are intruded by quartz diorite porphyry dikes of probable Late Cretaceous to 

Early Tertiary age, and by Tertiary tourmaline-bearing granite. The Ready Cash prospect 

consists of quartz-calcite-sulfide veins, and pods of skarn. The ore minerals consist 

chiefly of arsenopyrite, pyrite, chalcopyrite, galena and sphalerite, accompanied by minor 

amounts of tetrahedrite, tennantite, argentite, and cassiterite. The skarn consists of pyrite, 

pyrrhotite and chalcopyrite in a matrix of calc-silicate minerals and sparse quartz. The 

deposit can be subdivided into: a) copper-rich pods of skarn having grades of 0.5 to 0.9% 

copper (Hawley and Clark, 1974); b) arsenopyrite-quartz veins, containing 0.08 ounce of 

gold per ton, 1.06 ounce of silver per ton, and 0.33% copper; and c) high silver-lead-tin 

veins containing up to 20.8 ounces of silver per ton, 4.0% lead, and 0.5% tin (Hawley and 

others, 1978). The several types of deposits may be related to two or more magmatic 

events in the area. 

 The deposit at the Ready Cash prospect is more or less continuous with the deposit at 

the Canyon Creek prospect (HE055), encompassing an area about 2.5 miles long and 1 

mile wide. 

HE057 
Alaska Resource Data File 

Page 117 

Alteration:

 There probably have been multiple alteration events; including skarn formation and 

silicification. 

Age of mineralization:

 Probably Late Cretaceous and (or) younger. 

Deposit model:

Cu skarn and younger Ag-Pb-Sn veins (Cox and Singer, 1986; models 18b, 15b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b, 15b 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Both surface and underground workings. Two tunnels, 170 feet and 75 long feet have 

been driven and there are several prospect pits. 

 The deposit can be subdivided into: a) copper-rich pods of skarn having grades of 0.5 to 

0.9% copper (Hawley and Clark, 1974); b) arsenopyrite-quartz veins, containing 0.08 

ounce of gold per ton, 1.06 ounce of silver per ton, and 0.33% copper; and c) high silverlead-tin veins containing up to 20.8 ounces of silver per ton, 4.0% lead, and 0.5% tin 

(Hawley and others, 1978). 

Production notes:

 

Reserves:

 The two principal silver-rich veins on the prospect contain approximately 200,000 tons 

of ore carrying 10 to 20 ounces of silver per ton and 0.5% tin (C. Hawley, personal communication, 1999). This estimate does not include the skarn deposits. 

Additional comments:

 

References:

Thurmond, 1918; Capps, 1919; Ross, 1933; Saunders, 1954; Berg and Cobb, 1967; 

Hawley and others, 1969; Clark and Cobb, 1972; Hawley and Clark, 1973; Hawley and 

Clark, 1974; Hawley and others, 1978; Cobb, 1978 (OFR 78-1062); Kurtak and others, 

1988; Balen, 1989; Balen, 1990 (OFR 34-90). 

Primary reference: Hawley and Clark, 1974 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE057 
Alaska Resource Data File 

Page 118 

Site name(s): Unnamed (divide between Christy and Copeland creeks) 

Site type: Occurrence 

ARDF no.: HE058 

Latitude: 63.13 Quadrangle: HE A-6 

Longitude: 149.75 

Location description and accuracy:

 This occurrence is at an elevation of about 5,200 feet, about midway between the middle reaches of Christy and Copeland Creeks. the map site is about 1.3 mile north of 

VABM 5048 (Copeland), in the NE1/4 of sec. 1, T. 21 S., R. 12 W., of the Fairbanks Meridian. The location is accurate to within 0.5 mile. This is location 22 of Cobb (1978: 

OFR 78-1062), and location E-29 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Cr 

 Other: Ni, Pt 

Ore minerals: Chromite, garnierite, pyrite 

Gangue minerals: Serpentine 

Geologic description:

 The country rocks in the area of this occurrence are a tectonically mixed assembleges of 

Upper Devonian serpentinite, basalt, chert, and gabbro. The occurrence consists of talus 

blocks of serpentinite(?) containing pods of massive chromite. The blocks occur in an 

area underlain by serpentinite altered to quartz-carbonate rock containing disseminated 

pyrite and stained with garnierite. Samples comprising 95% chromite contain 39.5% 

Cr2O3 and a chromium/iron ratio of 3.1:1, along with traces of platinum group metals 

(principally rhenium) and 1,000 ppm nickel (Hawley and others, 1969). The platinum values in eight samples were at the lower limit of detection (Balen, 1990: OFR 34-90). 

Alteration:

 Serpentinization of ultramafic intrusive rocks. The serpentinite is altered to quartzcarbonate rock containing disseminated pyrite and stained with garrnierite. 

Age of mineralization:

 Chromite probably was a magmatic segregation in Upper Devonian ultramafic intrusive 

rocks. 

HE058 
Alaska Resource Data File 

Page 119 

Deposit model:

Podiform chromite (Cox and Singer, 1986; model 8a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

8a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 There has been surface sampling only. Samples comprising 95% chromite contain 

39.5% Cr2O3 and a chromium/iron ratio of 3.1:1, along with traces of platinum group 

metals (principally rhenium) and 1,000 ppm nickel (Hawley and others, 1969). The platinum values in eight samples were at the lower limit of detection (Balen, 1990: OFR 34-

90). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969 (C 617); Hawley and Clark, 1974; Cobb, 1978 (OFR 78-1062); 

Balen, 1990 (OFR 34-90). 

Primary reference: Hawley and others, 1969 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE058 
Alaska Resource Data File 

Page 120 

Site name(s): Metals (claim group) 

Site type: Prospect 

ARDF no.: HE059 

Latitude: 63.12 Quadrangle: HE A-6 

Longitude: 149.92 

Location description and accuracy:

 The Metals prospect is at an elevation of about 5,300 feet on the north wall of the valley 

of upper McCallie Creek. The map site is on the boundary of Denali National Park and 

Preserve, in the NW1/4 of sec. 6, T. 21 S., R. 12 W., of the Fairbanks Meridian. The accuracy of this location is within 1 mile. This is location E-33 from Balen (1990: OFR 34-

90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Arsenopyrite? 

Gangue minerals: Quartz? 

Geologic description:

 The country rocks in the area of the Metals prospect are Upper Triassic limestone and 

basalt flows. The deposit is in these bedded rocks and apparently consists of arsenopyrite

(?) disseminations and arsenopyrite(?)-bearing quartz(?) stockwork veinlets. Geochemical 

analyses show that this is primarily a gold prospect (Balen 1990: OFR 34-90). 

Alteration:

 

Age of mineralization:

 Late Triassic or younger. 

Deposit model:

Polymetallic vein(?) (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c? 

Production Status: None 

HE059 
Alaska Resource Data File 

Page 121 

Site Status: Inactive 

Workings/exploration:

 Surface samples only. 

Production notes:

 

Reserves:

 

Additional comments:

 Alternate names are the Methalss Claim Group, McCallie Creek Mining. 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE059 
Alaska Resource Data File 

Page 122 

Site name(s): McCallie Creek 

Site type: Occurrences 

ARDF no.: HE060 

Latitude: 63.11 Quadrangle: HE A-6 

Longitude: 149.85 

Location description and accuracy:

 Occurrences of placer gold are on McCallie Creek, an east-flowing tributary of Ohio 

Creek. The occurrences extend from the mouth of McCallie Creek upstream to the map 

site, which is in the Se1/4 of sec. 9, T. 21 S., R. 12 W., of the Fairbanks Meridian. This is 

location E-32 of Balen (1990: OFR 34-90) and is accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 McCallie Creek hosts several placer gold occurrences. Its drainage area includes Upper 

Triassic limestone and basalt, in thrust contact with Lower Jurassic and Upper Triassic 

sandstone, siltstone, argillite, and conglomerate (Wilson and others, 1998). In places, 

these units are cut by several generations of veins related to Upper Cretaceous or Lower 

Tertiary plutons. The placer gold probably was derived from the erosion of such veins. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE060 
Alaska Resource Data File 

Page 123 

Site Status: Probably inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Kurtak and others, 1992; Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE060 
Alaska Resource Data File 

Page 124 

Site name(s): Unnamed (south of head of McCallie Creek) 

Site type: Prospect 

ARDF no.: HE061 

Latitude: 63.10 Quadrangle: HE A-6 

Longitude: 149.96 

Location description and accuracy:

 This prospect is at an elevation of about 5,400 feet, on a ridge above the valley glaciers 

south of the head of McCallie Creek. The map site is about 0.5 mile south-south-west of 

peak 5480, in the NW1/4 of sec. 13, T. 21 S., R. 3 W., of the Fairbanks Meridian. The accuracy of the location is within 1 mile. This is location E-31 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Ag, Au, Pb, Zn 

 Other: Cu 

Ore minerals: Arsenopyrite, chalcopyrite, galena, sphalerite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this prospect are Upper Triassic limestone and basalt flows. The 

deposit consists of disseminated sulfides in the country rocks, and a stockwork of sulfidebearing quartz veinlets. The sulfide minerals are arsenopyrite, stibnite, chalcopyrite, galena, and sphalerite. The stockwork is about 100 feet wide, and is open along strike. 

Analyses of 27 samples gave maximum values of 0.9 ounces of gold per ton , 4.4 ounces 

of silver per ton, 1.8 percent lead, 1.2 percent zinc and 4 percent antimony (Balen, 1990: 

OFR 34-90). 

Alteration:

 Gossan developed at surface. 

Age of mineralization:

 Late Triassic or younger. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE061 
Alaska Resource Data File 

Page 125 

22c 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 There has only been surface sampling. 

Production notes:

 

Reserves:

 

Additional comments:

 This deposit was discovered during regional geologic reconnaissance by the Bureau of 

LAnd Management (Balen and others, 1991). 

References:

Balen, 1990 (OFR 34-90); Balen and others, 1991. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE061 
Alaska Resource Data File 

Page 126 

Site name(s): Unnamed (northeast of upper Partin Creek) 

Site type: Prospect 

ARDF no.: HE062 

Latitude: 63.066 Quadrangle: HE A-6 

Longitude: 149.959 

Location description and accuracy:

 This prospect is at an elevation of about 5,000 feet, on the northeast wall of the valley 

of upper Partin Creek. The map site is in the SW1/4 of sec. 25, T. 21 S., R. 13 W., of the 

Fairbanks Meridian. The location is known to within 0.25 mile. This is location 23 of 

Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Ag, Au, Cu 

 Other: Sb 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite, pyrrhotite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this prospect are Upper Triassic limestone and basalt 

cut by Upper Cretaceous or Lower Tertiary biotite-quartz diorite porphyry. The deposit 

consists of auriferous skarn containing pyrite, pyrrhotite, chalcopyrite, arsenopyrite, and 

stibnite. Gold grades are higher near the intrusive contact. Samples contain up to 0.2 

ounces of gold per ton and 0.7 percent copper (Hawley and Clark, 1974). 

Alteration:

 Formation of skarn at intrusive contacts. 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b 

HE062 
Alaska Resource Data File 

Page 127 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 There has been limited exploration consisting of shallow trenches and rock chip samples. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Clark and Cobb, 1972; Hawley and Clark, 1973; Hawley and 

Clark, 1974; Hawley and others, 1978; Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 

34-90); Kurtak and others, 1992. 

Primary reference: Hawley and others, 1969 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE062 
Alaska Resource Data File 

Page 128 

Site name(s): Unnamed (divide between upper Partin and Shotgun creeks) 

Site type: Prospect 

ARDF no.: HE063 

Latitude: 63.071 Quadrangle: HE A-6 

Longitude: 149.952 

Location description and accuracy:

 This prospect is at an elevation of 6,000 feet on the divide between upper Partin and upper Shotgun creeks. It is in the north-central part of sec. 25, T. 21 S., R. 13 W., of the 

Fairbanks Meridian. The location of this prospect is known to within 0.25 miles. This is 

location 24 of Cobb (1978: OFR 78-1062). It is identified by Hawley and others (1978), 

and incorporated with locality E-34 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Ag, Au, Cu 

 Other: Sb 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite, pyrrhotite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of the prospect consists of several hundred meters of Upper Triassic limestone and marble, interbedded with altered, amygdaloidal basalt. The 

strata are intruded by biotite-quartz diorite porphyry of Late Cretaceous to Early Tertiary 

age. The deposit consists predominantly of skarn bodies, up to 440 feet long and 3 to 20 

feet thick, in an area about 3,000 feet long and 1,000 feet wide. The skarn contains pyrrhotite, up to 5% chalcopyrite, and as much as 2 ounces of gold per ton. Arsenopyrite and 

stibnite occur both in the skarn and in quartz-arsenopyrite-stibnite veins. Samples from 

shallow trenches contain up to 0.7% copper, 0.7% antimony, 300 ppm silver, and 63 ppm 

gold. 

Alteration:

 High temperature skarn. 

Age of mineralization:

 Late Cretaceous or younger. 

Deposit model:

HE063 
Alaska Resource Data File 

Page 129 

Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 There has been surface exploration only. The skarn contains pyrrhotite, up to 5% chalcopyrite, and as much as 2 ounces of gold per ton. Arsenopyrite and stibnite occur both 

in the skarn and in quartz-arsenopyrite-stibnite veins. Samples from shallow trenches 

contain up to 0.7% copper, 0.7% antimony, 300 ppm silver, and 63 ppm gold. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Clark and Cobb, 1972; Hawley and Clark, 1973; Hawley and 

Clark, 1974; Hawley and others, 1978; Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 

34-90); Kurtak and others, 1992. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE063 
Alaska Resource Data File 

Page 130 

Site name(s): Unnamed (northeast of upper Shotgun Creek) 

Site type: Prospect 

ARDF no.: HE064 

Latitude: 63.07 Quadrangle: HE A-6 

Longitude: 149.86 

Location description and accuracy:

 The prospect is at an elevation of about 5,000 feet on the divide about a mile northeast 

of upper Shotgun Creek. The map site is on the boundary of secs. 21 and 28, T. 21 S., R. 

12 W., of the Fairbanks Meridian. The location is accurate to within 1 mile. This is location 36-C of Hawley and Clark (1974); locality 25 of Cobb (1978: OFR 78-1062); and locality E35 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Ag, Au, Cu 

 Other: Pt, Cr 

Ore minerals: Chalcopyrite, chromite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this prospect consist largely of sheared, Devonian serpentinite that forms lenticular and podiform tectonic blocks as much as several hundred 

meters in size. The prospect consists of chalcopyrite-rich sulfide bodies in the serpentinite. Chromite pods also occur in the serpentinite and platinum group elements may be 

present. Three samples contained 0.7 ppm silver, 0.04 to 0.06 ppm gold, 300 to 1,500 

ppm chromium, 70 to 7,000 ppm copper, 100 to 1,000 ppm nickel, and a trace of platinum (Hawley and others, 1969). 

Alteration:

 Serpentinite of ultramafic hostrocks. 

Age of mineralization:

 The ore minerals probably were magmatic segregations in Devonian ultramafic 

hostrocks, and were partly redistributed during subsequent serpentization. 

Deposit model:

Podiform chromite (Cox and Singer, 1986; model 8a) 

HE064 
Alaska Resource Data File 

Page 131 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

8a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Preliminary surface exploration only. Three samples contained 0.7 ppm silver, 0.04 to 

0.06 ppm gold, 300 to 1,500 ppm chromium, 70 to 7,000 ppm copper, 100 to 1,000 ppm 

nickel, and a trace of platinum (Hawley and others, 1969). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Hawley and Clark, 1974; Kurtak and others, 1988; Balen, 1990 

(OFR 34-90). 

Primary reference: Hawley and others, 1969 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE064 
Alaska Resource Data File 

Page 132 

Site name(s): Unnamed (divide between Partin and Little Shotgun creeks) 

Site type: Occurrence 

ARDF no.: HE065 

Latitude: 63.04 Quadrangle: HE A-6 

Longitude: 149.93 

Location description and accuracy:

 This occurrence is at an elevation of about 4,300 feet on the west side of the divide between Little Shotgun Creek and Partin Creek. The map site is in the NW1/4 of sec. 6, T. 

22 S., R. 12 W., of the Fairbanks Meridian. The accuracy of the location is within 1 mile. 

This is location E-37 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Cr 

 Other: Pd, Pt, Ni 

Ore minerals: Chromite 

Gangue minerals: Serpentine 

Geologic description:

 The country rocks in the area of this occurrence are a tectonically mixed assemblages of 

Upper Devonian serpentinite, basalt, chert, and gabbro. The deposit consists of pods of 

massive chromite in serpentinite. Rock samples from the surface contained low chromium, palladium, and platinum values (Balen, 1990: OFR 34-90). The chromite probably 

was a mag,atic segregation on the ultramafic host rocks. 

Alteration:

 Serpentinization of ultramafic rocks. 

Age of mineralization:

 The chromite probably was a magmatic segregation in Upper Devonian ultramafic intrusive rocks. 

Deposit model:

Podiform chromite (Cox and Singer, 1986; model 8a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

8a 

HE065 
Alaska Resource Data File 

Page 133 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE065 
Alaska Resource Data File 

Page 134 

Site name(s): Golden Bell 

Site type: Prospect 

ARDF no.: HE066 

Latitude: 63.04 Quadrangle: HE A-6 

Longitude: 149.94 

Location description and accuracy:

 The Golden Bell placer gold prospect is on upper Partin Creek. The map site is in the 

NE1/4 of sec. 1, T. 22 S., R. 13 W., of the Fairbanks Meridian. This is location E-38 of 

Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The Golden Bell placer gold prospect is on upper Partin Creek. The creek drains Upper 

Triassic limestone and basalt, Upper Devonian sheared serpentinite, basalt, and chert, and 

Lower Jurassic and Uper Triassic redbed sandstones (Wilson and others, 1998). These 

strata are cut by several generations of veins probably related to Upper Cretaceous to 

Lower Tertiary plutons in the area. It is probable that the placer gold was derived from the 

erosion of the veins, but the hostrocks of the veins can not be discounted as a gold source. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE066 
Alaska Resource Data File 

Page 135 

Site Status: Inactive 

Workings/exploration:

 The placer was discovered in 1973, but there has been little more than surface exploration since then. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE066 
Alaska Resource Data File 

Page 136 

Site name(s): Unnamed (northeast wall of Eldridge Glacier) 

Site type: Occurrence 

ARDF no.: HE067 

Latitude: 63.01 Quadrangle: HE A-6 

Longitude: 149.99 

Location description and accuracy:

 This occurrence is at an elevation of about 2,400 feet in a stream valley draining the 

northeast wall of Eldridge Glacier. It is in sec. 14, T. 22 S., R. 13 W., of the Fairbanks 

Meridian. The localion is accurate to within 0.5 mile. This is locality 27 of Cobb (1978: 

OFR 78-1062). 

Commodities: 

 Main: Cu 

 Other: Ag, Au, Ni 

Ore minerals: Chalcopyrite, malachite, pyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are a tectonically intermixed assemblage of Upper Devonian serpentinite, basalt, chert, and gabbro. The occurrence consists 

of massive pyrite and chalcopyrite in irregular and veinlike masses in serpentinite. Some 

of the chalcopyrite is oxidized to malachite. Rock samples contained 15 ppm silver, 0.1 

ppm gold, 50 ppm nickel and 7.5% copper (Hawley and Clark, 1974). The sulfide minerals herein are assumed to be remobilized syngenetic magmatic segregations in the mafic 

host rocks. 

Alteration:

 

Age of mineralization:

 Probably Late Devonian, remobilized in Late Mesozoic or Tertiary. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

HE067 
Alaska Resource Data File 

Page 137 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 Rock samples contained 15 ppm silver, 0.1 ppm gold, 50 ppm nickel and 7.5% copper 

(Hawley and Clark, 1974). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE067 
Alaska Resource Data File 

Page 138 

Site name(s): Eldridge; Coal Creek 

Site type: Prospect 

ARDF no.: HE068 

Latitude: 63.01 Quadrangle: HE A-6 

Longitude: 149.86 

Location description and accuracy:

 This prospect is at an elevation of about 3,700 feet, on the west valley wall of upper 

Coal Creek. The map site is in the SE1/4 of sec. 16, T. 22 S., R. 12 W., of the Fairbanks 

Meridian. The location is accurate to within one mile. This is location E39 of Balen 

(1990: OFR 34-90). 

Commodities: 

 Main: Au, Cu, Mn 

 Other: Ni 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the vicinity of the Eldridge prospect are Upper Jurassic or Upper 

Triassic(?) crystal-rich tuff, argillite, chert, graywacke, and limestone (Wilson and others, 

1998). The only information about the deposit that it has been made public is that samples 

of it contain elevated values of gold, manganese, and copper, and minor nickel (Balen, 

1990: OFR 34-90). 

Alteration:

 

Age of mineralization:

 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

HE068 
Alaska Resource Data File 

Page 139 

Workings/exploration:

 There has been only surface sampling to date. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Kurtak and others, 1992; Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE068 
Alaska Resource Data File 

Page 140 

Site name(s): Shotgun Creek 

Site type: Prospect 

ARDF no.: HE069 

Latitude: 63.05 Quadrangle: HE A-6 

Longitude: 149.80 

Location description and accuracy:

 The map site of this gold placer prspect is at the junction of Shotgun and Little Shotgun 

creeks, which are east-flowing tributaries of Ohio Creek. The placer workings on Shotgun creek are approcimately 4 miles upstream from Ohio Creek. The workings on Little 

Shotgun Creek extend for about 3 miles above its mouth. The map site is at the south 

boundary of sec. 35, T. 19 S., R. 10 W., of the Fairbanks Meridian. This is location 26 of 

Cobb (1978: OFR 78-1062), and location E-36 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Lower Shotgun and Little Shotgun creeks drain Upper Jurassic to Upper Triassic(?) 

crystal tuff, argillite, chert, graywacke, and limestone. The upper parts of the creeks drain 

Upper Devonian serpentinite, basalt, chert, and gabbro, in thrust contact with Lower Jurassic and Upper Triassic sandstone and siltstone (Wilson and others, 1998). Capps 

(1919) reports that placer gold is present, but mining has not been successful. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE069 
Alaska Resource Data File 

Page 141 

Production Status: Undetermined. 

Site Status: Inactive 

Workings/exploration:

 There are surface workings only. 

Production notes:

 Capps (1919) reports that placer gold is present, but mining has not been successful. 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Cobb, 1973 (B 1374); Hawley and Clark, 1973; Hawley and Clark, 1974; 

Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE069 
Alaska Resource Data File 

Page 142 

Site name(s): Honolulu Creek; Chulitna Forks 

Site type: Occurrence 

ARDF no.: HE070 

Latitude: 63.06 Quadrangle: HE A-6 

Longitude: 149.54 

Location description and accuracy:

 The map site of this placer gold occurrence is on the northwest bank of Honolulu Creek, 

just downstream from the George Parks Highway. It is in the SW1/4 of sec. 30, T. 21 S., 

R. 10 W., of the Fairbanks Meridian. The placer apparently extends downstream from the 

east boundary of sec. 30, to the mouth of Honolulu Creek. This site corresponds to loc. D24 in Balen (1990: OFR 34-90). Also see Additional comments. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Honolulu Creek drains an area underlain by Tertiary (Eocene?) intrusive rocks and 

Lower Cretaceous or Upper Jurassic turbidite (Wilson and others, 1998). The placer gold 

in Honolulu Creek may have been derived from the erosion of lode deposits like those at 

HE131 and HE133. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE070 
Alaska Resource Data File 

Page 143 

Site Status: Inactive 

Workings/exploration:

 There are surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 MAS File number 0020670132 erroneously places this occurrence in T. 22 S. 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE070 
Alaska Resource Data File 

Page 144 

Site name(s): Little Honolulu Creek; Brush Battle 

Site type: Occurrences 

ARDF no.: HE071 

Latitude: 63.03 Quadrangle: HE A-6 

Longitude: 149.53 

Location description and accuracy:

 Several placer gold occurrences are distributed along about 2 miles of Little Honolulu 

Creek. The map site is at about the midpoint of the occurrences, in the SE1/4 of sec. 8, T. 

22 S., R. 10 W., of the Fairbanks Meridian. This is location D-23 of Balen (1990: OFR 

34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Little Honolulu Creek drains an area underlain by Tertiary (Eocene?) granodiorite and 

granite intruding Lower Cretaceous and Upper Jurassic metamorphosed turbidites 

(Wilson and others, 1998). The placer gold was probably derived from the erosion of lode 

deposits such as those at HE131 and HE133. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE071 
Alaska Resource Data File 

Page 145 

Site Status: Inactive 

Workings/exploration:

 There are only surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE071 
Alaska Resource Data File 

Page 146 

Site name(s): Snoopy; Costello Creek 

Site type: Occurrence 

ARDF no.: HE072 

Latitude: 63.26 Quadrangle: HE B-5 

Longitude: 149.47 

Location description and accuracy:

 The Snoopy occurrence, often linked to the nearby Nim claim block (HE074), covers a 

0.25 by 0.75 mile area. The map site is at the center of the area, in sec. 21, T. 19 S., R. 10 

W., of the Fairbanks Meridian. Useful published maps showing the general location of the 

Snoopy prospect are: Hawley and Clark (1974); Hawley and others (1978); Bundtzen 

(1983); and Salisbury and Dietz (1984). 

Commodities: 

 Main: Ag, Au, Cu 

 Other: 

Ore minerals: Arsenopyrite, chalcopyrite, galena, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 Thick Quaternary glacial deposits cover much of the bedrock at the Snoopy prospect. 

The country rocks in the area are Upper Triassic to Upper Jurassic crystal tuff, argillite, 

chert, graywacke, and limestone. These strata are intruded by garnetiferous diorite porphyry, which in turn is cut by monzonite porphyry and quartz porphyry. The intrusive 

rocks are correlated with similar hypabyssal plutons at the Golden Zone mine (HE043), 

which have been dated as Late Cretaceous (Swainbank and others, 1977). The deposit is 

poorly exposed. It mat be a breccia pipe or a porphyry deposit that contains as much as 

3% disseminated sulfides (Hawley and Clark, 1974). 

The sulfide minerals are arsenopyrite, chalcopyrite, galena, pyrite, pyrrhotite, and 

sphalerite. Selected samples contain 0.5 to 0.7 ppm gold, 200 to more than 10,000 ppm 

silver, and 150 to 1,000 ppm copper (Hawley and Clark, 1974). The Snoopy deposit 

probably is an extension of the deposit at the adjacent Nim prospect (HE074), where geophysical methods indicate 5 breccia-pipes in addition to disseminated porphyry-style mineralization. The same geophysical surveys suggest that the Snoopy area may contain 2 

more pipes (Bundtzen, 1983, fig. 5). 

Alteration:

HE072 
Alaska Resource Data File 

Page 147 

 Alteration consists of widespread propylitic alteration and silicification. Local zones of 

potassic alteration (secondary biotite) have been reported. 

Age of mineralization:

 Late Cretaceous (70-65 Ma) or younger. 

Deposit model:

Polymetallic vein and Au-Ag breccia pipe or Cu-Au porphyry (Cox and Singer, 1986; 

models 22c, 20c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 20c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Surface workings including trenching and drilling. Intensive exploration in the late 

1970s included 18 shallow reverse-circulation drill holes in the Snoopy and Nim prospect 

areas. Geophysical surveys including IP and magnetics were conducted on the property 

(Bundtzen, 1983). 

 Selected samples contain 0.5 to 0.7 ppm gold, 200 to more than 10,000 ppm silver, and 

150 to 1,000 ppm copper (Hawley and Clark, 1974). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hawley and others, 1969; Hawley and Clark, 1974; Hawley and others, 1978; Salisbury 

and Dietz, 1984; Bundtzen, 1983; Bundtzen and others, 1984; Balen, 1990 (OFR 34-90); 

Kurtak and others, 1992. 

Primary reference: Bundtzen, 1983 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE072 
Alaska Resource Data File 

Page 148 

Site name(s): Squaw Creek 

Site type: Occurrence 

ARDF no.: HE073 

Latitude: 63.26 Quadrangle: HE B-5 

Longitude: 149.28 

Location description and accuracy:

 This placer gold occurrence is on Squaw Creek, a tributary of the Middle Fork Chulitna 

River. The map site is just south of the center of sec. 16, T. 19 S., R. 9 W., of the Fairbanks Meridian. Placer activity has occurred from about the map site, downstream for 

about a mile. This is location E-13 of Balen (1990: OFR 34-90). The location is accurate 

to within 0.5 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Squaw Creek drains an area of unconsolidated Quaternary fluvial and glacial deposits. 

The source of the placer gold is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Inactive 

HE073 
Alaska Resource Data File 

Page 149 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE073 
Alaska Resource Data File 

Page 150 

Site name(s): Nim 

Site type: Prospect 

ARDF no.: HE074 

Latitude: 63.28 Quadrangle: HE B-5 

Longitude: 149.43 

Location description and accuracy:

 The Nim claim block at its acme, comprised 168 claims. The block was approximately 

rectangular, with the long axis oriented NE - SW. The center of the prospect area is at the 

intersection of secs. 10, 11, 14, and 15, T. 19 S., R. 10 W., of the Fairbanks Meridian. 

The location is accurate to within 0.5 mile. 

Commodities: 

 Main: Ag, Au, Cu, Mo 

 Other: Pb, Zn 

Ore minerals: Arsenopyrite, bornite, chalcocite, chalcopyrite, galena, molybdenite, pyrite, 

sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of the Him prospect include Upper Triassic to Upper Jurassic crystal tuff, argillite, chert, graywacke, and limestone, which are intruded successively by hypabyssal garnetiferous diorite porphyry, and by monzonite porphyry and 

quartz porphyry. The intrusive rocks are correlated with similar Upper Cretaceous plutons 

at the Golden Zone mine (HE043) (Swainbank and others, 1977). The deposits consists 

chiefly of pluton-hosted, porphyry-type disseminations of arsenopyrite, bornite, chalcocite, chalcopyrite, and molybdenite in a 4,000- by 4,000-foot area. Selected bedrock samples assay as high as 5% copper, 360 ppm molybdenite, 2 ppm gold and 9 ounces of silver 

per ton. 

 In addition to the porphyry-type deposit. mapping and geophysical methods indicate 5 

breccia-pipe anomalies similar to those at the Golden Zone mine (Bundtzen and others, 

1984). The Nim deposit has a slightly different geochemical signature from the Golden 

Zone mine (Nim is higher in molybdenum-copper, lower in gold), but its hybrid brecciaporphyry mineralization, small alteration haloes, and complex mineralogy are essentially 

the same as at the Golden Zone mine. 

Alteration:

HE074 
Alaska Resource Data File 

Page 151 

 Alteration consists of widespread propylitic alteration and silicification. Local zones of 

potassic alteration marked by secondary biotite reported. 

Age of mineralization:

 The similarity of the Nim deposit to the Upper Cretaceous (70-65 Ma) Golden Zone 

mine (HE043) suggests that they are probably the same age. 

Deposit model:

Polymetallic vein, Au-Ag breccia pipe, or Cu-Au porphyry (Cox and Singer, 1986; models 22c, 20c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c, 20c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Exploration in the late 1970's consisted of at least 18 shallow RC drill holes into the 

Snoopy and Nim areas. IP and magnetic surveys have also been conducted on the property (Bundtzen, 1983). 

 Selected bedrock samples assay as high as 5% copper, 360 ppm molybdenite, 2 ppm 

gold and 9 ounces of silver per ton. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Capps, 1924; Ross, 1933; Hawley and others, 1969; Clark and Cobb, 1972; 

Hawley and Clark, 1974; Hawley and others, 1978; Salisbury and Dietz, 1984; Bundtzen, 

1983; Bundtzen and others, 1984; Balen, 1990 (OFR 34-90); Kurtak and others, 1992. 

Primary reference: Salisbury and Dietz, 1984 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE074 
Alaska Resource Data File 

Page 152 

Site name(s): Nimbus; Camp Creek 

Site type: Prospect 

ARDF no.: HE075 

Latitude: 63.285 Quadrangle: HE B-5 

Longitude: 149.481 

Location description and accuracy:

 This site is at an elevation of about 2,900 feet on the south bank of Camp Creek. It is in 

the NW1/4 sec. 9, T. 19 S., R. 10 W., of the Fairbanks Meridian. The location is accurate 

to within 1,000 feet. 

Commodities: 

 Main: Ag, Au 

 Other: As, Cu, Sb, Zn 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite, sphalerite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rock at this prospect consists of Upper Jurassic to Upper Triassic(?) crystal 

tuff, argillite, chert, graywacke, and limestone that are intruded by Upper Cretaceous 

quartz diorite dikes. The deposit is in brecciated dikes and consists of lenses 1 to 2 meters 

thick, and up to 10 meters long, of massive chalcopyrite, arsenopyrite, stibnite, pyrite, and 

sphalerite. The deposit is similar in mineralogy and type to the Golden Zone deposit 

(HE043) and satellite prospects to the southwest. Samples from arsenopyrite-rich veins 

contained a maximum 9.3 ppm Au and 22 ppm Ag over a width of 2.0 feet (Hawley and 

others, 1978). 

Alteration:

 Phyllic. 

Age of mineralization:

 The similarity of the Nimbus deposit to the Upper Cretaceous (70-65 Ma) Golden Zone 

deposit (HE043) suggests that they are probably the same age. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

HE075 
Alaska Resource Data File 

Page 153 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 There has been surface exploration. Samples from arsenopyrite-rich veins contained a 

maximum 9.3 ppm Au and 22 ppm Ag over a width of 2.0 feet (Hawley and others, 

1978). 

Production notes:

 

Reserves:

 

Additional comments:

 Some references combine this prospect with the similar Nimrod prospect (HE076) as 

one site. 

References:

Hawley and others, 1969; Hawley and others, 1978; Bundtzen, 1983; Nokleberg and others, 1994. 

Primary reference: Hawley and others, 1978 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE075 
Alaska Resource Data File 

Page 154 

Site name(s): Nimrod; Camp Creek 

Site type: Prospect 

ARDF no.: HE076 

Latitude: 63.292 Quadrangle: HE B-5 

Longitude: 149.499 

Location description and accuracy:

 The Nimrod prospect is at an elevation of about 3,100 feet on the north side of Camp 

Creek, about 1.4 miles northeast of the Dunkle mine camp. The site is located in NE 1/4 

sec. 8, T. 19 S., R. 10 W., of the Fairbanks Meridian. The location is accurate to within 

1,000 feet. 

Commodities: 

 Main: Ag, Au 

 Other: As, Cu, Sb, Zn 

Ore minerals: Arsenopyrite, chalcopyrite, pyrite, sphalerite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of the Nimrod prospect are Devonian ophiolite and Upper 

Devonian to Triassic tuffaceous chert, volcanic conglomerate, volcanic mudstone, basaltic breccia, graywacke, and limestone (Wilson and others, 1998). The Nimrod prospect 

consists of sulfide-bearing, quartz-matrix breccia poorly exposed for 200 to 300 feet 

along a strand of the Chulitna fault. The sulfide minerals are arsenopyrite, chalcopyrite, 

pyrite, sphalerite, and stibnite. Samples contain up to 3 ounces of silver per ton, in addition to lead, zinc, antimony, and gold (Hawley and others, 1978). The deposit is similar 

in mineralogy and structure to the Golden Zone and satellite deposits (HE043, HE040, 

etc.). 

Alteration:

 Phyllic? 

Age of mineralization:

 Probably Late Cretaceous, assuming that the deposit is contemporaneous with the 

Golden Zone and satellite deposits (HE043, HE040, etc.). 

Deposit model:

HE076 
Alaska Resource Data File 

Page 155 

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Active 

Workings/exploration:

 There are minor surface workings. Samples contain up to 3 ounces of silver per ton, in 

addition to lead, zinc, antimony, and gold (Hawley and others, 1978). 

Production notes:

 

Reserves:

 

Additional comments:

 Similar to the Nimbus prospect (HE075); some references combine the two as one site. 

References:

Hawley and others, 1969; Hawley and others, 1978; Bundtzen, 1983; Wilson and others, 

1998. 

Primary reference: Hawley and others, 1978 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE076 
Alaska Resource Data File 

Page 156 

Site name(s): Unnamed (south of upper Windy Creek) 

Site type: Occurrence 

ARDF no.: HE077 

Latitude: 63.46 Quadrangle: HE B-5 

Longitude: 149.14 

Location description and accuracy:

 This occurrence is at an elevation of about 4,200 feet south of upper Windy Creek, a 

tributary of the Nenana River. The site is at the junction of sections 5, 6, 7 and 8, T. 17 

S., R. 8 W., of the Fairbanks Meridian. The location is accurate to within 3,000 feet. 

This is location 1 of Hickman and Craddock (1976). 

Commodities: 

 Main: Cu 

 Other: Ag 

Ore minerals: Chalcopyrite, malachite, pyrrhotite 

Gangue minerals: Calcite, diopside, wollastonite 

Geologic description:

 The country rocks in the area of this occurrence are Devonian to Ordovician argillite 

and interbedded limestone that have been intruded by small plugs of Upper Cretaceous to 

Lower Tertiary quartz diorite. The deposit consists of a 3- to 9-foot-wide skarn containing discontinuous, 1- to 3-foot-thick zones of pyrrhotite and minor chalcopyrite along 

fractures. Weathering and oxidation have produced a heavy limonitic coating, malachite, 

and erythrite. Samples contain 1,900 ppm copper and 0.6 ppm silver (Hickman and Craddock, 1976). 

Alteration:

 Skarn and subsequent weathering and oxidation. 

Age of mineralization:

 Late Cretaceous or younger. 

Deposit model:

Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE077 
Alaska Resource Data File 

Page 157 

18b 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. Samples contain 1,900 ppm copper and 0.6 ppm silver 

(Hickman and Craddock, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 The site is in Denali National Park Wilderness. 

References:

Hickman and Craddock, 1976; Cobb, 1978 (OFR 78-1062). 

Primary reference: Hickman and Craddock, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE077 
Alaska Resource Data File 

Page 158 

Site name(s): Unnamed (south of Windy Creek) 

Site type: Occurrence 

ARDF no.: HE078 

Latitude: 63.46 Quadrangle: HE B-5 

Longitude: 149.12 

Location description and accuracy:

 This occurrence is at an elevation of about 3,900 feet, about 0.6 mile southwest of 

Windy Creek changes from east to southeast. The site is at the NE corner of sec. 8, T. 17 

S., R. 8 W., of the Fairbanks Meridian. The location is accurate to within 3000 feet. This 

is location 2 of Hickman and Craddock (1976). 

Commodities: 

 Main: Cu 

 Other: Ag 

Ore minerals: Chalcopyrite, malachite 

Gangue minerals: Calcite, diopside, wollastonite 

Geologic description:

 The country rocks in the area of this occurrence are Devonian to Ordovician interbedded argillite and limestone, intruded by small plugs of Upper Cretaceous to Lower Tertiary quartz diorite. The occurrence consists of chalcopyrite-bearing skarn zones adjacent to 

the stocks. Weathering zones has produced limonite gossan and malachite. Samples contain 1,900 ppm copper and 0.6 ppm silver (Hickman and Craddock, 1976). 

Alteration:

 Weathering of skarn to produce secondary iron and copper minerals. 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b 

HE078 
Alaska Resource Data File 

Page 159 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. Samples contain 1,900 ppm copper and 0.6 ppm silver 

(Hickman and Craddock, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hickman and Craddock, 1976. 

Primary reference: Hickman and Craddock, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE078 
Alaska Resource Data File 

Page 160 

Site name(s): Windy Creek 

Site type: Occurrence 

ARDF no.: HE079 

Latitude: 63.46 Quadrangle: HE B-5 

Longitude: 149.06 

Location description and accuracy:

 This occurrence is at an elevation of about 3,500 feet northeast of Windy Creek. The 

map site is about 1.5 miles north of the confluence of Windy Creek and West Fork Windy 

Creek, in the south-central part of sec. 3, T. 17 S., R. 8 W., of the Fairbanks Meridian. 

The location is accurate to within 3,000 feet. This is location 3 of Hickman and Craddock (1976). 

Commodities: 

 Main: Sb, Zn 

 Other: 

Ore minerals: Arsenopyrite?, pyrite, sphalerite, stibnite 

Gangue minerals: 

Geologic description:

 This occurrence is in Pennsylvanian to Upper Triassic graywacke and argillite, and consists of a few small veinlets (up to 1-inch wide) of sphalerite, stibnite, and pyrite. Pyrite 

also is disseminated in the wallrock adjacent to the veins. The deposit has a strike length 

of at least 150 feet. Samples contain 8,800 ppm lead, 2,200 ppm zinc, 14.9 ppm silver, 

2,000 ppm antimony, and traces of arsenic (Hickman and Craddock, 1976). 

Alteration:

 Host rocks are pyritized and silicified adjacent to the veins. 

Age of mineralization:

 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

HE079 
Alaska Resource Data File 

Page 161 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. Samples contain 8,800 ppm lead, 2,200 ppm zinc, 14.9 ppm silver, 2,000 ppm antimony, and traces of arsenic (Hickman and Craddock, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 The site is in Denali National Park Wilderness. 

References:

Hickman and Craddock, 1976. 

Primary reference: Hickman and Craddock, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE079 
Alaska Resource Data File 

Page 162 

Site name(s): Unnamed (east of lower Slime Creek) 

Site type: Occurrence 

ARDF no.: HE080 

Latitude: 63.508 Quadrangle: HE C-4 

Longitude: 148.789 

Location description and accuracy:

 This occurrence is at an elevation of about 3,100 feet, about 0.7 mile east of the point at 

which the Parks Highway crosses Slime Creek. The site is in the SW1/4 of sec. 19, T. 16 

S., R. 6 W., of the Fairbanks Meridian. The location is accurate to within 2000 feet. This 

is location 5 of Hickman and Craddock (1976). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Bornite, digenite 

Gangue minerals: 

Geologic description:

 Up to 1% bornite and digenite are disseminated in Triassic metabasalt (Hickman and 

Craddock, 1976). 

Alteration:

 

Age of mineralization:

 The sulfides are probably indigenous to the Triassic hostrock. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

Production Status: None 

Site Status: Inactive 

HE080 
Alaska Resource Data File 

Page 163 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Hickman and Craddock, 1976; Cobb, 1978 (OFR 78-1062). 

Primary reference: Hickman and Craddock, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE080 
Alaska Resource Data File 

Page 164 

Site name(s): Yanert River 

Site type: Prospect 

ARDF no.: HE081 

Latitude: 63.67 Quadrangle: HE C-4 

Longitude: 148.69 

Location description and accuracy:

 This placer gold prospect is on the lower reaches of the Yanert River, about 2.5 miles 

above its junction with the Nenana River. The map site is near the presumed midpoint of 

the placer, in the NE1/4 of sec. 27, T. 14 S., R. 6 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The source of the placer gold in this prospect is unknown. No other information about 

the prospect has been made public. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Probably inactive 

Workings/exploration:

HE081 
Alaska Resource Data File 

Page 165 

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE081 
Alaska Resource Data File 

Page 166 

Site name(s): Unnamed (upper Moody Creek) 

Site type: Prospect 

ARDF no.: HE082 

Latitude: 63.78 Quadrangle: HE D-3 

Longitude: 148.49 

Location description and accuracy:

 This placer gold prospect is on Moody Creek, a tributary of the Nenana River. The map 

site is in the NW1/4 of sec. 22, T. 13 S., R. 5 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Moody Creek drains an area underlain by Paleozoic to Upper Precambrian metasedimentary and metavolcanic rocks cut by Mesozoic intrusive rocks. No other information 

about this placer gold prospect has been made public. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

HE082 
Alaska Resource Data File 

Page 167 

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE082 
Alaska Resource Data File 

Page 168 

Site name(s): Unnamed (north side of Cody Creek) 

Site type: Occurrence 

ARDF no.: HE083 

Latitude: 63.84 Quadrangle: HE D-3 

Longitude: 148.11 

Location description and accuracy:

 This occurrence is at an elevation of about 3,700 feet on the north wall of the valley of 

Cody Creek, about 3.8 miles upstream from its junction with Wood River. The map site is 

in the NE1/4 of sec. 34, T. 12 S., R. 3 W., of the Fairbanks Meridian. The location is accurate to within 0.5 mile. 

Commodities: 

 Main: Sb 

 Other: Au 

Ore minerals: Stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this occurrence are Lower Paleozoic or possibly Upper 

Precambrian schists, cut by Upper Cretaceous stocks and Tertiary sills and dikes. Limited 

information about this deposit suggests that it consists of one or more stibnite-quartz 

veins. Such a deposit would be of interest chiefly for its gold context. 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

Production Status: None 

HE083 
Alaska Resource Data File 

Page 169 

Site Status: Probably inactive 

Workings/exploration:

 There has been surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, 1939; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE083 
Alaska Resource Data File 

Page 170 

Site name(s): Needle Rock 

Site type: Prospect 

ARDF no.: HE084 

Latitude: 63.98 Quadrangle: HE D-3 

Longitude: 148.45 

Location description and accuracy:

 This gold placer prospect adjoins the upper Totatlanika River near Needle Rock, a 

prominent landmark. The map site is in the SW1/4 of sec. 1, T. 11 S., R. 5 W., of the 

Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The country rocks in the area of the Needle Rock gold placer prospect include the midPaleocene Totatlanika Schist, mid-Tertiary hypabyssal plutons, and younger Tertiary 

strata that overlie the basement rocks (Wahrhafig, 1970: GQ805). At Needle Rock, Tertiary gravels have been worked for placer gold. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Probably inactive 

HE084 
Alaska Resource Data File 

Page 171 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Maddren, 1918; Wahrhaftig, 1970 (GQ 805); Cobb, 1978 (OFR 78-1062). 

Primary reference: Maddren, 1918 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE084 
Alaska Resource Data File 

Page 172 

Site name(s): McCuen Gulch 

Site type: Mine 

ARDF no.: HE085 

Latitude: 63.98 Quadrangle: HE D-3 

Longitude: 148.44 

Location description and accuracy:

The McCuen Gulch placer gold prospect is on a south-flowing tributary to Totatlanika 

River, approximately 0.5 miles upstream from Needle Rock. The map site is near the 

mouth of the gulch, in sec. 12, T. 11 S., R. 5 W., of the Fairbanks Meridian. This is locality 58 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 McCuen Gulch drains an area of mid-Tertiary coal-bearing strata that overlie midPaleozoic Totatlanika Schist, composed predominantly of felsic and mafic metavolcanic 

and metavolcaniclastic rocks (Wilson and others, 1998). The schist is intruded by Tertiary hypabyssal plutons. 

 The placer deposit is in poorly-sorted alluvium consisting of well-rounded clasts, 

mainly of coarse-grained schist. According to Maddren (1918), the gold is derived from 

bedrock schist rather than reconcentrated from the Tertiary gravels (Maddren, 1918). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE085 
Alaska Resource Data File 

Page 173 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Surface development, all prior to 1918. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Maddren, 1918; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062); Wilson and others, 

1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE085 
Alaska Resource Data File 

Page 174 

Site name(s): Dexter Creek 

Site type: Prospect 

ARDF no.: HE086 

Latitude: 63.96 Quadrangle: HE D-3 

Longitude: 148.34 

Location description and accuracy:

 This placer gold prospect is on Dexter Creek, a tributary of the Totatlanika River. The 

map site is near the center of sec. 16, T. 11 S., R. 4 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Dexter Creek drains an area underlain by Paleozoic to Upper Precambrian metasedimentary and metavolcanic rocks cut by Mesozoic intrusive rocks. The source of the placer 

gold in Dexter Creek is presumed to be as-yet undiscovered gold-bearing lodes in its 

drainage area. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

HE086 
Alaska Resource Data File 

Page 175 

Workings/exploration:

 There are only surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE086 
Alaska Resource Data File 

Page 176 

Site name(s): Surprise Creek 

Site type: Occurrence 

ARDF no.: HE087 

Latitude: 63.93 Quadrangle: HE D-3 

Longitude: 148.32 

Location description and accuracy:

 This occurrence is at an elevation of about 4,100 feet on Dexter Creek, a tributary of the 

Totatlanika River. The map site is in the SW1/4 of sec. 27, T. 11 S., R. 4 W., of the Fairbanks Meridian. The location is accurate to within 1 mile. 

Commodities: 

 Main: Pb, Zn 

 Other: 

Ore minerals: Galena, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the general area of this occurrence are Lower Paleozoic or possibly 

Upper Precambrian schists and younger Paleozoic Keevy Peak Formation. The deposit is 

in schist, and consists of stratiform layers of massive galena and sphalerite, accompanied 

by quartz. 

Alteration:

 

Age of mineralization:

 Mineralization is syngenetic with the Lower Paleozoic or possibly Upper Precambrian 

hostrocks. 

Deposit model:

Kuroko massive sulfide(?) (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a? 

Production Status: None 

HE087 
Alaska Resource Data File 

Page 177 

Site Status: Probably inactive 

Workings/exploration:

 There has been only surface exploration to date. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE087 
Alaska Resource Data File 

Page 178 

Site name(s): Sheep Creek; Gossan Peak 

Site type: Prospect 

ARDF no.: HE088 

Latitude: 63.92 Quadrangle: HE D-3 

Longitude: 148.28 

Location description and accuracy:

 This prospect is at an elevation of about 700 feet near the head of Sheep Creek. It is in 

the NW1/4 of sec. 35, T. 11 S., R. 4 W., of the Fairbanks Meridian. The location is accurate to within 1 mile. This is locality 4 of Cox and others (1989). 

Commodities: 

 Main: Pb, Zn 

 Other: Ag, Sn 

Ore minerals: Cassiterite?, galena, pyrite, sphalerite, stannite? 

Gangue minerals: Quartz, sericite 

Geologic description:

 The Sheep Creek deposit is in the Totatlanika Schist near its contact with the Keevy 

Peak Formation (Nokleberg and others, 1994). The Totatlanika Schist ranges in age from 

Early Mississipian to Middle Devonian and consists mostly of felsic and mafic metavolcanic and metavolcaniclastic rocks (Wilson and others, 1998). The deposit is 200 feet 

thick and 2,000 feet long, and consists of isoclinally folded, stratabound lenses of massive 

sulfides in tuffaceous chlorite schist and chert (O'Connor and others, 1989). The sulfides 

are fine-grained sphalerite, galena, and pyrite. This deposit has high values of Sn, reported as either cassiterite or stannite. Channel sampling and grab samples contain up to 

11% combined lead and zinc, and 10 grams of silver per ton. Zones up to 1 meter wide 

contain 1% tin (Nokleberg and others, 1994). 

Alteration:

 Alteration consists of sericitized schist in both the hanging and footwall of the deposit. 

Age of mineralization:

 Mineralization is syngenetic with the Paleozoic host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

HE088 
Alaska Resource Data File 

Page 179 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

Production Status: None 

Site Status: Active 

Workings/exploration:

 At least three drill holes to a maximum depth of 470 feet were completed in the 1970's 

(O'Connor and others, 1989). Channel sampling and grab samples contain up to 11% 

combined lead and zinc, and 10 grams of silver per ton. Zones up to 1 meter wide contain 

1% tin (Nokleberg and others, 1994). 

Production notes:

 

Reserves:

 Based on limited data a tentative resource of 5.5 million pounds of tin has been identified (O'Connor and others, 1989). There are no estimates of base metal reserves. 

Additional comments:

 

References:

Wahrhaftig, 1970 (GQ 805); Bundtzen and others, 1984; Nokleberg and others, 1987; 

Cox and others, 1989; O'Connor and others, 1989; Nokleberg and others, 1994; Wilson 

and others, 1998. 

Primary reference: O'Connor and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE088 
Alaska Resource Data File 

Page 180 

Site name(s): Moose Creek 

Site type: Mine 

ARDF no.: HE089 

Latitude: 63.99 Quadrangle: HE D-3 

Longitude: 148.20 

Location description and accuracy:

 This placer gold mine is on Moose Creek, a tributary of Tatlanika Creek. The map site 

is about a mile below the junction of Last Chance Creek, at the SE corner of sec. 31, T. 

10 S., R. 6 W., of the Fairbanks Meridian. This is locality 59 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Moose Creek drains an area underlain by Lower Mississippian to Middle Devonian Totatlanika Schist, older Paleozoic to Late Precambrian schists, and Mesozoic and Tertiary 

intrusive rocks. No other information about this placer gold mine has been made public. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Active? 

HE089 
Alaska Resource Data File 

Page 181 

Workings/exploration:

 There were surface workings only at Moose Creek. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, 1933 (B 836); Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE089 
Alaska Resource Data File 

Page 182 

Site name(s): Unnamed (upper Moose Creek) 

Site type: Occurrence 

ARDF no.: HE090 

Latitude: 63.98 Quadrangle: HE D-3 

Longitude: 148.09 

Location description and accuracy:

 This occurrence is at an elevation of about 3,400 feet, onthe northeast wall of the valley 

of Moose Creek, about 2 miles upstream from its junction with Last Chance Creek. The 

map site is in the NE1/4 of sec. 11, T. 11 S., R. 3 W., of the Fairbanks Meridian. The location is accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the general area of this occurrence are thrust slices of Lower Mississippian to Middle Devonian Totatlanika Schist (Wilson and others, 1998), small, Tertiary hypabyssal intrusions (Wahrhaftig, 1970: GQ805). The occurrence reportedly is a 

gold lode. 

Alteration:

 

Age of mineralization:

 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

HE090 
Alaska Resource Data File 

Page 183 

 There has only been surface exploration. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998; Wahrhaftig, 1970 (GQ 805). 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE090 
Alaska Resource Data File 

Page 184 

Site name(s): Last Chance Creek 

Site type: Prospect 

ARDF no.: HE091 

Latitude: 63.93 Quadrangle: HE D-3 

Longitude: 148.14 

Location description and accuracy:

 This placer gold prospect is on Last Chance Creek, a tributary of Moose Creek. The 

map site is in the E1/2 of sec. 28, T. 11 S., R. 3 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Last Chance Creek drains an area underlain by the mid-Paleozoic Totatlanika Schist, by 

Lower Paleozoic to Upper Precambrian schists, and by Mesozoic and Tertiary intrusive 

rocks. No other information about this placer gold prospect has been made public. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Probably inactive 

Workings/exploration:

HE091 
Alaska Resource Data File 

Page 185 

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cobb, 1973 (B 1374); Cox and others, 1989. 

Primary reference: Cobb, 1973 (B 1374) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE091 
Alaska Resource Data File 

Page 186 

Site name(s): Kenny 

Site type: Occurrence 

ARDF no.: HE092 

Latitude: 63.93 Quadrangle: HE D-3 

Longitude: 148.01 

Location description and accuracy:

 This occurrence is at an elevation of about 6,100 feet, about 1 mile north-northeast of 

Keevy Peak. The map site is at the center of sec. 30, T. 11 S., R. 2 W., of the Fairbanks 

Meridian. The location is accurate to within 1 mile. 

Commodities: 

 Main: Pb, Zn 

 Other: Ag 

Ore minerals: Galena, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The general area of the Peaches prospect is underlain by Lower 

Paleozoic or possibly Upper Precambrian schists cut by Late Cretaceous stocks and Tertiary sills and dikes. The deposit is in schist, and consists of stratiform layers of massive 

sulfides, chiefly galena and sphalerite, accompanied by quartz and sericite (Inmet Mining, 

oral communication, 1999). 

Alteration:

 

Age of mineralization:

 Mineralization probably is syngenetic with the Lower Paleozoic or Upper Precambrian 

host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

Production Status: None 

HE092 
Alaska Resource Data File 

Page 187 

Site Status: Probably inactive 

Workings/exploration:

 There has been only surface exploration to date. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE092 
Alaska Resource Data File 

Page 188 

Site name(s): Keevy Peak 

Site type: Occurrence 

ARDF no.: HE093 

Latitude: 63.92 Quadrangle: HE D-3 

Longitude: 148.01 

Location description and accuracy:

 This occurrence is at an elevation of about 6,000 feet, about 0.7 miles southeast of 

Keevy Peak. The map site is in the SE1/4 of sec. 31, T. 11 S., R. 2 W., of the Fairbanks 

Meridian. The location is accurate to within 1 mile. 

Commodities: 

 Main: Pb, Zn 

 Other: Ag 

Ore minerals: Galena, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The general area of the Peaches prospect is underlain by Lower 

Paleozoic or possibly Upper Precambrian schists cut by Late Cretaceous stocks and Tertiary sills and dikes. The deposit is in schist, and consists of stratiform layers of massive 

sulfides, chiefly galena and sphalerite, accompanied by quartz and sericite (Inmet Mining, 

oral communication, 1999). 

Alteration:

 

Age of mineralization:

 Mineralization probably is syngenetic with the Lower Paleozoic or Upper Precambrian 

host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

Production Status: None 

HE093 
Alaska Resource Data File 

Page 189 

Site Status: Probably inactive 

Workings/exploration:

There has only been surface exploration to date. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record. 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE093 
Alaska Resource Data File 

Page 190 

Site name(s): Peaches 

Site type: Prospect 

ARDF no.: HE094 

Latitude: 63.89 Quadrangle: HE D-3 

Longitude: 148.02 

Location description and accuracy:

 The Peaches prospect is at an elevation of about 4,600 feet on the south wall of the valley of upper Copper Creek. the map site is about 2 miles south-southeast of Keevy Peak, 

in the NE1/4 of sec. 7, T. 12 S., R. 2 W., of the Fairbanks Meridian. The location is accurate to within 0.5 mile. 

Commodities: 

 Main: Ag, Pb, Zn 

 Other: 

Ore minerals: Galena, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The general area of the Peaches prospect is underlain by Lower 

Paleozoic or possibly Upper Precambrian schists cut by Late Cretaceous stocks and Tertiary sills and dikes. The deposit is in schist, and consists of stratiform layers of massive 

sulfides, chiefly galena and sphalerite, accompanied by quartz and sericite (Inmet Mining, 

oral communication, 1999). 

Alteration:

 

Age of mineralization:

 Mineralization probably is syngenetic with the Lower Paleozoic or Upper Precambrian 

host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

HE094 
Alaska Resource Data File 

Page 191 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 There has been surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE094 
Alaska Resource Data File 

Page 192 

Site name(s): Grizzly Creek 

Site type: Prospect 

ARDF no.: HE095 

Latitude: 63.75 Quadrangle: HE C-3 

Longitude: 148.04 

Location description and accuracy:

 This placer gold prospect is on Grizzly Creek, a tributary of the Wood River. The map 

site is in the NW1/4 of sec. 36, T. 13 S., R. 3 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Bedrock in the area of the Grizzly Creek placer prospect consists of Cantwell Formation, and of Upper Triassic calcareous sedimentary rocks intruded by gabbro plugs and 

sills (Wilson and others, 1998). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

Site Status: Probably inactive 

Workings/exploration:

HE095 
Alaska Resource Data File 

Page 193 

 There are surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, 1938; Cobb, 1978 (OFR 78-1062); Wilson and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE095 
Alaska Resource Data File 

Page 194 

Site name(s): Unnamed (west of Anderson Mountain) 

Site type: Prospect 

ARDF no.: HE096 

Latitude: 63.80 Quadrangle: HE D-2 

Longitude: 147.95 

Location description and accuracy:

 The prospect is located about 0.5 mile west of the summit of Anderson Mountain at an 

elevation of 4,500 to 5,500 feet. It is in sec. 9, T. 13 S., R. 2 W., of the Fairbanks Meridian. The location is accurate to within one mile. This is locality 12 of Cox and others 

(1989). 

Commodities: 

 Main: Ag, Cu, Pb, Zn 

 Other: 

Ore minerals: Arsenopyrite, chalcopyrite, enargite, galena, sphalerite 

Gangue minerals: Barite, calcite, chlorite, quartz, sericite, siderite 

Geologic description:

 The prospect is in the Upper Devonian(?) felsic metavolcanic schist and phyllite, often 

containing relict phenocrysts of quartz, orthoclase, and plagioclase (Wilson and others, 

1998). The deposit consists of massive layers of chalcopyrite, galena, sphalerite, enargite, 

and arsenopyrite in gangue of quartz, sericite, chlorite, calcite, barite, and siderite. The 

sulfide beds appear to lie on an irregular paleosurface on the footwall, with domal sulfide 

accumulations at the tops of layers (Nokleberg and others, 1994). The Hines Creek fault, 

a major structure that is responsible for much structural complexity at Anderson Mountain, is two miles south of the prospect. Numerous high-angle faults displace the sulfide 

layers, and folding makes tracing the layers a challenge. The discovery drill hole in 1976 

intersected a massive sulfide zone that measured 1.7 meters thick and assayed 1.2% copper, 2% lead, 8.5% zinc and 61.4 grams of silver per ton (Schuster, 1998). Surface grab 

samples reportedly contain 14% combined lead and zinc, 2.5% copper and 274 grams of 

silver per ton. Nokleberg and others (1994) report copper grades varying from 0.5 to 19%, 

lead grades up to 5%, up to 22% zinc and up to 170 grams of silver per ton. 

Alteration:

 Absence of footwall alteration and stringer mineralization suggests off-vent deposition. 

HE096 
Alaska Resource Data File 

Page 195 

Age of mineralization:

 Mineralization was probably syngenetic with the Upper Devonian(?) host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Geophysical and geochemical surveys have defined a potential zone of volcanogenic 

massive sulfide mineralization stretching over a strike length of 1373 meters. There has 

been about 2500 meters of drilling at the prospect (Robertson, 1998). The discovery drill 

hole in 1976 intersected a massive sulfide zone that measured 1.7 meters thick and assayed 1.2% copper, 2% lead, 8.5% zinc and 61.4 grams of silver per ton (Schuster, 1998). 

Surface grab samples reportedly contain 14% combined lead and zinc, 2.5% copper and 

274 grams of silver per ton. Nokleberg and others (1994) report copper grades varying 

from 0.5 to 19%, lead grades up to 5%, up to 22% zinc and up to 170 grams of silver per 

ton. 

Production notes:

 

Reserves:

 

Additional comments:

 High geochemical values of arsenic, antimony, mercury, and tungsten may be derived 

from older schist basement. Anderson Mountain is significantly different from prospects 

in the Totatlanika Schist belt to the north (e.g. HE122) in having higher Cu content. 

References:

Nokleberg and others, 1987; Cox and others, 1989; Nokleberg and others, 1994; Robertson, 1998; Schuster, 1998; Wilson and others, 1998. 

Primary reference: Nokleberg and others, 1994 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE096 
Alaska Resource Data File 

Page 196 

Site name(s): Unnamed (headwaters of Virginia Creek) 

Site type: Prospect 

ARDF no.: HE097 

Latitude: 63.828 Quadrangle: HE D-2 

Longitude: 147.788 

Location description and accuracy:

 This prospect is at an elevation of about 4,000 feet in the headwaters of Virginia Creek, 

a tributary of the Wood River. The site is in sec. 32, T.12 S., R. 1 W., of the Fairbanks 

Meridian. The location is accurate to within one-quarter mile. 

Commodities: 

 Main: Ag, Cu, Pb, Zn 

 Other: 

Ore minerals: Chalcopyrite, galena, pyrrhotite, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 This deposit is a steeply-dipping stratabound massive sulfide horizon up to 13.1 feet 

thick in pelite and quartzite of the lower Paleozoic to possibly Upper Precambrian Birch 

Creek Schist (Wilson and others, 1998). The metasediments are cut by a lower Tertiary to 

Cretaceous intrusive stock on the southeastern boundary of the prospect area. The sulfide 

minerals are chalcopyrite, galena, pyrrhotite, and sphalerite. At least six drill holes have 

tested the deposit. Samples contain up to 0.53% copper, 1.89% lead, 6.51% zinc, 185.1 

grams of silver per ton and 0.38 grams of gold per ton (www.grayd.com, 1999). 

Alteration:

 

Age of mineralization:

 Mineralization was probably syngenetic with host rocks that are early Paleozoic to possibly Late Precambrian. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

HE097 
Alaska Resource Data File 

Page 197 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Geophysical and geochemical surveys have outlined the sulfide zone. At least six holes 

have been drilled at the prospect. Samples contain up to 0.53% copper, 1.89% lead, 

6.51% zinc, 185.1 grams of silver per ton and 0.38 grams of gold per ton (www.grayd.

com, 1999). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Bundtzen and others, 1984; Eakins and others, 1985; Wilson and others, 1998. 

Primary reference: www.grayd.com, 1999 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE097 
Alaska Resource Data File 

Page 198 

Site name(s): Unnamed (on Kansas Creek) 

Site type: Prospect 

ARDF no.: HE098 

Latitude: 63.87 Quadrangle: HE D-2 

Longitude: 147.79 

Location description and accuracy:

 This prospect is at an elevation of about 2,700 feet on the northeast bank of Kansas 

Creek, approximately 2 miles upstream from its junction with Wood River. It is in sec. 

17, T. 12 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1.5 

miles. This is location 3 of Clark and Cobb (1972). 

Commodities: 

 Main: Sb 

 Other: Pb, Zn 

Ore minerals: Stibnite 

Gangue minerals: Quartz 

Geologic description:

 The prospect is in the Lower Paleozoic or possibly Upper Precambrian Birch Creek 

Schist, comprising quartz-sericite schist, quartzite, and a few interbeds of massive marble 

(Wilson and others, 1998). Locally, Lower Tertiary and Upper Cretaceous granites intrude the metasedimentary rocks. The deposit consists of quartz veins containing stibnite 

and minor galena and sphalerite. No gold and silver has been reported (Cobb, 1978: OFR 

78-1062). 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

HE098 
Alaska Resource Data File 

Page 199 

Production Status: Undetermined. 

Site Status: Inactive 

Workings/exploration:

 Surface exploration and workings only. 

Production notes:

 

Reserves:

 It has been estimated that 200 tons of high grade antimony ore could be recovered from 

the deposit (Joesting, 1941). 

Additional comments:

 

References:

Brooks, 1911; Capps, 1912; Joesting, 1942 (MI 67-1); Joesting, 1943; Berg and Cobb, 

1967; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062); Wilson and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE098 
Alaska Resource Data File 

Page 200 

Site name(s): Unnamed (near 'Rock Creek') 

Site type: Prospect 

ARDF no.: HE099 

Latitude: 63.90 Quadrangle: HE D-2 

Longitude: 147.79 

Location description and accuracy:

 The map site of this prospect is at an elevation of about 3,500 feet, in the valley of 

(informally named) Rock Creek, about 2.4 miles from its junction with Wood River. The 

site is in sec. 5, T. 11 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to 

within 1 mile. This is location 2 of Clark and Cobb (1972). 

Commodities: 

 Main: Sb 

 Other: 

Ore minerals: Stibnite 

Gangue minerals: Quartz 

Geologic description:

 Limited information suggests that this deposit consists of one or more quartz-antimony 

veins near the contact between the Keevy Peak Formation to the north and Birch Creek 

Schist to the south (Wilson and others, 1998). The veins may be related to Upper Cretaceous and Lower Tertiary intrusive rocks that cut the metasedimentary rocks nearby. 

Alteration:

 

Age of mineralization:

 Late Cretaceous or younger, assuming that the deposit is related to the intrusive rocks. 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

Production Status: None 

HE099 
Alaska Resource Data File 

Page 201 

Site Status: Inactive 

Workings/exploration:

 Surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Joesting, 1943; Berg and Cobb, 1967; Wahrhaftig, 1970 (GQ 804); Clark and Cobb, 

1972; Cobb, 1978 (OFR 78-1062); Wilson and others, 1998. 

Primary reference: Joesting, 1943 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE099 
Alaska Resource Data File 

Page 202 

Site name(s): Unnamed (upper Chute Creek) 

Site type: Prospect 

ARDF no.: HE100 

Latitude: 63.902 Quadrangle: HE D-2 

Longitude: 147.715 

Location description and accuracy:

 This prospect is at an elevation of about 5,400 feet, on the east side of the valley of upper Chute Creek. The map site is about 1.25 mile northwest of VABM 7437 (Al), in the 

SE1/4 of sec. 3, T. 12 S., R. 1 W., of the Fairbanks Meridian. The accuracy of the location 

is within 0.25 mile. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Malachite 

Gangue minerals: Quartz 

Geologic description:

 Prospect is in the Lower Paleozoic Keevy Peak Formation and consists of surficial 

malachite in quartz-sericite schist. 

Alteration:

 Oxidation of copper mineral(s) to malachite. 

Age of mineralization:

 Mineralization was probably syngenetic with the host rocks (Early Paleozoic). 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

HE100 
Alaska Resource Data File 

Page 203 

 Exploration consists of surface sampling and trenching. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

www.grayd.com, 1999. 

Primary reference: www.grayd.com, 1999 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE100 
Alaska Resource Data File 

Page 204 

Site name(s): Chute Creek 

Site type: Mine 

ARDF no.: HE101 

Latitude: 63.94 Quadrangle: HE D-2 

Longitude: 147.74 

Location description and accuracy:

 The Chute Creek mine is at an elevation of about 3,500 feet on the southwest side of 

Chute Creek. It is at the NE1/4 of sec. 28, T. 11 S., R. 1 W., of the Fairbanks Meridian. 

The location is accurate to within 2 miles. This is location 4 of Clark and Cobb (1972), 

and location 5 of Cox and others (1989). 

Commodities: 

 Main: Ag, Au 

 Other: 

Ore minerals: Pyrite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The Chute Creek mine is in Totatlanika Schist, a sequence mainly of predominantly felsic and mafic metavolcanic and metavolcaniclastic rocks that is dated as Early Mississippian to Middle Devonian (Wilson and others, 1998). At the mine the schist is cut by Cretaceous(?) rhyolite porphyry. The deposit consists of disseminated pyrite, in a zone 100 to 

250 ft wide, in altered and sheared rhyolite porphyry. Capps (1912) reported grades of up 

to 0.435 ounce of gold per ton. 

Alteration:

 Phyllic. 

Age of mineralization:

 Cretaceous(?) or younger. 

Deposit model:

Porphyry Cu-Au(?) (Cox and Singer, 1986; model 20c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

20c? 

HE101 
Alaska Resource Data File 

Page 205 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 The mine has both surface and underground workings. In 1910 a 30 foot adit was 

driven. Capps (1911) reported that a small mill operated at the site for a month in 1909. 

Production notes:

 Unknown. 

Reserves:

 

Additional comments:

 

References:

Brooks, 1910; Capps, 1911; Capps, 1912; Berg and Cobb, 1967; Wahrhaftig, 1970 (GQ 

804); Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062); Eakins and others, 1985; Cox 

and others, 1989; Wilson and others, 1998. 

Primary reference: Capps, 1912 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE101 
Alaska Resource Data File 

Page 206 

Site name(s): Glacier Creek 

Site type: Prospect 

ARDF no.: HE102 

Latitude: 63.98 Quadrangle: HE D-2 

Longitude: 147.62 

Location description and accuracy:

 The Glacier Creek claim block is at an elevation of about 4,400 feet, about midway between Sheep and Galcier creeks. The map site is in the SE1/4 of sec. 7, T. 11 S., R. 1 E., 

of the Fairbanks Meridian. The location is accurate to within 3,000 feet. 

Commodities: 

 Main: Ag, Au, Cu, Pb, Zn 

 Other: 

Ore minerals: Chalcopyrite, galena, sphalerite 

Gangue minerals: Chlorite, feldspar, quartz, white mica 

Geologic description:

 The country rocks at the Glacier Creek prospect are the Lower Mississippian to Middle 

Devonian Totatlanika Schist, composed predominantly of mafic and felsic metavolcanic 

and metavolcaniclastic rocks, minor pelitic schist, and fossiliferous marble (Wilson and 

others, 1998). The deposit consists of stratabound lenses of massive sulfides in strongly 

altered rhyolite schist (www.grayd.com, 1999). The sulfide minerals are chalcopyrite, galena, sphalerite. The hostrocks and stratabound massive sulfides indicate that the Galcier 

Creek prospect is a metamorphosed volcanogenic massive sulfide deposit. 

Alteration:

 The alteration minerals are chlorite and white mica. 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Lower Mississippian to Middle 

Devonian host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE102 
Alaska Resource Data File 

Page 207 

28a 

Production Status: None 

Site Status: Active 

Workings/exploration:

 At least three holes were drilled in the late 1990's, along with surface mapping and geochemical sampling. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998. 

Primary reference: www.grayd.com, 1999 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE102 
Alaska Resource Data File 

Page 208 

Site name(s): Unnamed (head of Kansas Creek) 

Site type: Prospect 

ARDF no.: HE103 

Latitude: 63.86 Quadrangle: HE D-2 

Longitude: 147.61 

Location description and accuracy:

 This prospect is at an elevation of about 4,900 feet on the south side of the drainage basin at the head of Kansas Creek, approximately 8 miles upstream from its mouth on the 

Wood River. It is approximately 2 miles southeast of VABM 7437 (Al). The map site is 

in sec. 19, T. 12 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 

1 mile. This is location 5 of Clark and Cobb (1972) and location 15 of Cox and others 

(1989). 

Commodities: 

 Main: Pb, Sb, Zn 

 Other: 

Ore minerals: Galena, sphalerite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 This prospect is in the Lower Paleozoic or possibly Late Precambrian Birch Creek 

Schist, which consists of quartz-sericite schist, quartzite, and a few interbeds of massive 

marble (Wilson and others, 1998). Lower Tertiary and Upper Cretaceous granites intrude 

the metasedimentary rocks less than one mile to the south. The deposit consists of quartz 

lenses containing stibnite, minor galena, and sphalerite. The lenses are up to 6 feet thick 

and trend northeast. Samples contain as much as 63% antimony (Joesting, 1943). 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger, assuming deposit is related to nearby granitic intrusive rocks. 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

HE103 
Alaska Resource Data File 

Page 209 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Only surface workings. Samples contain as much as 63% antimony (Joesting, 1943). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Brooks, 1911; Capps, 1912; Joesting, 1942 (MR 194-11); Joesting, 1943; Ebbley and 

Wright, 1948; Berg and Cobb, 1967; Clark and Cobb, 1972; Cox and others, 1989; Wilson and others, 1998. 

Primary reference: Joesting, 1943 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE103 
Alaska Resource Data File 

Page 210 

Site name(s): Cirque 

Site type: Prospect 

ARDF no.: HE104 

Latitude: 63.78 Quadrangle: HE D-2 

Longitude: 147.60 

Location description and accuracy:

 The Cirque prospect is at an elevation of about 5,500 feet in a cirque in the south wall 

of upper West Fork Little Delta River. The map site is in the SW1/4 of sec. 17, T. 13 S., 

R. 1 E., of the Fairbanks Meridian. The location is accurate to with 2 miles. 

Commodities: 

 Main: Ag, Cu, Pb, Zn 

 Other: 

Ore minerals: Chalcopyrite, galena, pyrite, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The country rocks at the Cirque prospect are Upper Devonian? felsic metavolcanic 

rocks, chiefly dark- to medium-gray, fine- to medium-grained schist and phyllite, that locally contain relict phenocrysts of quartz, orthoclase, and plagioclase (Wilson and others, 

1998). The deposit generally consists of stratiform layers of massive sulfides, chiefly pyrite, chalcopyrite, galena, and sphalerite. Two ore bearing zones have been identified: the 

Discovery and Dol zones. The Discovery zone is hosted in carbonaceous shale and appears to follow a contact with rhyolite schist. The sulfide layer is massive to banded and 

can be traced in outcrop for about 20 meters with widths up to 2.8 meters. The zone remains open in both directions but is covered by talus and scree. Surface samples over a 

2.4 meter width at the Discovery zone contain an average value of 3.84% zinc, 2.76% 

lead, and 0.49% copper, plus 3.73 grams gold and 98.5 grams silver per tonne. 

 The Dol zone is in dolomite interbedded with shale. The zone has been traced in scattered outcrops for about 200 meters. All outcrops sampled returned anomalous base and 

precious metal values. Highlights include a 1-meter chip sample that assayed 5.57% zinc, 

2.24% lead, and 0.31% copper, and 0.41 gram gold and 33 grams silver per tonne (The 

Northern Miner, v. 85, no. 24). 

Alteration:

 Pyrite and sericite. 

HE104 
Alaska Resource Data File 

Page 211 

Age of mineralization:

 Mineralization was probably syngenetic with the Upper Devonian host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Surface exploration mostly includes soil grids, rock-chip sampling and trenching. In 

1994, a ground geophysical survey delineated a 670-meter-long electromagnetic anomaly 

coincident with the Dol zone. There was unknown amount of drilling in 1999. 

 Surface samples over a 2.4 meter width at the Discovery zone contain an average value 

of 3.84% zinc, 2.76% lead, and 0.49% copper, plus 3.73 grams gold and 98.5 grams silver 

per tonne. 

 The Dol zone highlights include a 1-meter chip sample that assayed 5.57% zinc, 2.24% 

lead, and 0.31% copper, and 0.41 gram gold and 33 grams silver per tonne (The Northern 

Miner, v. 85, no. 24). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998; The Northern Miner, 1999, v. 85, no. 24. 

Primary reference: The Northern Miner, 1999, v.85, no. 24 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE104 
Alaska Resource Data File 

Page 212 

Site name(s): Unnamed (northeast of upper Wood River) 

Site type: Occurrence 

ARDF no.: HE105 

Latitude: 63.738 Quadrangle: HE C-2 

Longitude: 147.566 

Location description and accuracy:

 This occurrence is at an elevation of about 4,700 feet, in the headwaters of northeast 

tributaries to upper Wood River. The site is approximately 1 mile west of peak 6,850, in 

the NW1/4 of sec. 4, T. 14 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 2000 feet. This is location 5 of Sherwood and others (1976). 

Commodities: 

 Main: Au 

 Other: Cu 

Ore minerals: Malachite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are Upper Triassic carbonaceous, calcareous shale, argillite, sandstone, siltstone, and limestone, along with numerous dikes, 

sills, and small plugs of altered diabase and gabbro (Wilson and others, 1998). The occurrence consists of gossan, and of malachite in fractures in the sedimentary rocks. Samples of the gossan contained 1 ppm gold (Sherwood and others, 1976). 

Alteration:

 Locally conspicuous iron staining and oxidation of copper minerals. 

Age of mineralization:

 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

HE105 
Alaska Resource Data File 

Page 213 

Workings/exploration:

 Surface exploration only. Samples of the gossan contained 1 ppm gold (Sherwood and 

others, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Sherwood and others, 1976; Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE105 
Alaska Resource Data File 

Page 214 

Site name(s): Unnamed (south of upper Wood River) 

Site type: Occurrence 

ARDF no.: HE106 

Latitude: 63.732 Quadrangle: HE C-2 

Longitude: 147.662 

Location description and accuracy:

 This occurrence is at an elevation of about 4,000 feet, adjacent to a north-flowing tributary to upper Wood River. The map site is in the NW1/4 of sec. 1, T. 14 S., R. 1 W., of 

the Fairbanks Meridian. The location is accurate to within 2,000 feet. This is location 7 of 

Sherwood and others (1976). 

Commodities: 

 Main: Au, Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: 

Geologic description:

 The general area of this occurrence is underlain by the Devonian Yanert Fork sequence, 

which consists of siliceous mudstone, argillite, slate, phyllite, semischist, and impure 

quartzite, and minor metachert and metavolcanic rocks. The bedded rocks are cut by Triassic(?) gabbro sills and dikes (Wilson and others, 1998). The occurrence consists of ironstained, chalcopyrite- and pyrite-bearing gabbro, and pyritic metasedimentary rocks. Samples of the sulfide-bearing rocks contain up to 172 ppm copper and 0.7 ppm gold 

(Sherwood and others, 1976). 

Alteration:

 

Age of mineralization:

 Probably Late Triassic. 

Deposit model:

Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24b(?) 

HE106 
Alaska Resource Data File 

Page 215 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface samples only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Sherwood and others, 1976; Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE106 
Alaska Resource Data File 

Page 216 

Site name(s): Unnamed (southwest head of Wood River) 

Site type: Occurrence 

ARDF no.: HE107 

Latitude: 63.707 Quadrangle: HE C-2 

Longitude: 147.616 

Location description and accuracy:

 This occurrence is at an elevationof about 4,700 feet southwest of the head of Wood 

River. It is approximately 0.4 miles north-northwest of peak 6,445, in the NE1/4 of sec. 

18, T. 14 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 2000 

feet. This is location 16 of Sherwood and others (1976). 

Commodities: 

 Main: Au 

 Other: Cu 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are the Devonian Yanert Fork sequence, an intensely deformed, thick, marine sequence dominantly of metasedimentary 

and metavolcanic rocks. The bulk of sequence is dark-gray to black carbonaceous shale 

with interbedded lithic sandstone and siltstone (Wilson and others, 1998). The occurrence is in hydrothermally altered gabbroic sills and dikes that cut the metasedimentary 

rocks. Samples of the altered zones show elevated gold and copper values. One sample 

contained 0.5 ppm gold (Sherwood and others, 1976). 

Alteration:

 The hydrothermal alteration is not described. 

Age of mineralization:

 The gabbroic hostrocks are undated, but may be Triassic. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

HE107 
Alaska Resource Data File 

Page 217 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Sherwood and others, 1976; Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE107 
Alaska Resource Data File 

Page 218 

Site name(s): Unnamed (in headwaters of Wood River) 

Site type: Occurrence 

ARDF no.: HE108 

Latitude: 63.686 Quadrangle: HE C-2 

Longitude: 147.658 

Location description and accuracy:

 This occurrence is at an elevation of about 6,500 feet on the west wall of a hangingvalley glacier above the southwest head of Wood River. The map site is approximately 

0.5 mile southeast of peak 8,115, at the center of sec. 24, T. 14 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 2,000 feet. This is location 22 of 

Sherwood and others (1976). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are the Devonian Yanert Fork sequence, an intensely deformed, thick marine sequence of dominantly of metasedimentary 

and metavolcanic rocks. Most of the sequence is siliceous mudstone, argillite, slate, phyllite, semischist, impure quartzite, and metachert. The sequence is intruded by gabbroic 

dikes and sills (Wilson and others, 1998). The occurrence consists of chalcopyrite disseminations in the gabbroic sills and dikes. A sample contained 750 ppm copper and 2.4 

ppm silver (Sherwood and others, 1976). 

Alteration:

 

Age of mineralization:

 Gabbroic hostrocks are undated, but may be Triassic. 

Deposit model:

Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE108 
Alaska Resource Data File 

Page 219 

24b(?) 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface exploration only. A sample contained 750 ppm copper and 2.4 ppm silver 

(Sherwood and others, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 One of several minor copper showings in this belt of rocks. 

References:

Sherwood and others, 1976; Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE108 
Alaska Resource Data File 

Page 220 

Site name(s): Unnamed (north of lower Yanert Glacier) 

Site type: Occurrence 

ARDF no.: HE109 

Latitude: 63.660 Quadrangle: HE C-2 

Longitude: 147.684 

Location description and accuracy:

 This occurrence is at an elevation of about 7,000 feet, on a nunatak about 0.5 mile 

south-southeast of peak 7850. The map site is in the NE1/4 of sec. 35, T. 14 S., R. 1 W., 

of the Fairbanks Meridian. The location is accurate to within 2,000 feet. This is location 

24 of Sherwood and others (1976). 

Commodities: 

 Main: Cu 

 Other: Au 

Ore minerals: Chalcopyrite 

Gangue minerals: 

Geologic description:

 The general area of this prospect is underlain by the Devonian Yanert Fork sequence 

which consists of siliceous mudstone, argillite, slate, phyllite, semischist, and impure 

quartzite, and minor metachert and metavolcanic rocks. The bedded rocks are cut by Triassic(?) sills and dikes (Wilson and others, 1998). The deposit reportedly consists of disseminated chaclopyrite and other sulfides, adjacent to a gabbro sill. Samples contained 

2,300 ppm copper and 0.5 ppm gold (Sherwood and others, 1976). 

Alteration:

 

Age of mineralization:

 Possibly Late Triassic. 

Deposit model:

Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24b(?) 

HE109 
Alaska Resource Data File 

Page 221 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface samples only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Sherwood and others, 1976; Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE109 
Alaska Resource Data File 

Page 222 

Site name(s): Unnamed (upper Edgar Creek) 

Site type: Occurrence 

ARDF no.: HE110 

Latitude: 63.633 Quadrangle: HE C-2 

Longitude: 147.903 

Location description and accuracy:

 This occurrence is at an elevation of about 5,500 feet, in the eastern headwaters of upper Edgar Creek, a tributary to the Yanert Fork River. The map site is in the NE1/4 of sec. 

10, T. 15 S., R. 2 W., of the Fairbanks Meridian. The location is accurate to within 2000 

feet. This is location 26 of Sherwood and others (1976). 

Commodities: 

 Main: Cu 

 Other: Au 

Ore minerals: Chalcopyrite, malachite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are the Devonian Yanert Fork sequence, consisting mainly of siliceous mudstone, argillite, slate, phyllite, semischist, and 

impure quartzite. Thin interbeds of banded metachert and metavolcanic rocks are also 

present (Wilson and others, 1998). The bedded rocks are cut by Triassic(?) gabbroic sills 

and dikes. The occurrence consists of disseminations of chalcopyrite and possibly other 

sulfide minerals, in the metasedimentary rocks near a gabbro sill. Locally, the copper 

mineral(s) are oxidized to malachite. Samples contained 4,700 ppm copper and 0.4 ppm 

gold (Sherwood and others, 1976). 

Alteration:

 

Age of mineralization:

 Possibly Triassic, assuming that the mineralization is related to the gabbro. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

HE110 
Alaska Resource Data File 

Page 223 

Production Status: No 

Site Status: Inactive 

Workings/exploration:

 Surface samples only. Samples contained 4,700 ppm copper and 0.4 ppm gold 

(Sherwood and others, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Sherwood and others, 1976; Cobb, 1978 (OFR 78-1062); Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE110 
Alaska Resource Data File 

Page 224 

Site name(s): East Fork Susitna River 

Site type: Prospect 

ARDF no.: HE111 

Latitude: 63.39 Quadrangle: HE B-1 

Longitude: 147.05 

Location description and accuracy:

 This placer gold prospect is on a south-flowing tributary of the East Fork Susitna River, 

about 7.3 miles from its junction with the Susitna River. The placer ground extends for an 

unknown distance upstream and downstream from the map site, which is approximately 

in the center of sec. 6, T. 18 S., R. 4 E., of the Fairbanks Meridian. The site is accurate to 

with 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The area of the placer prospect is underlain by Quaternary alluvium, but the catchment 

basin of the creek contains Cretaceous tonalite, granodiorite, quartz diorite, diorite, and 

quartz monzodiorite (Wilson and others, 1998). The lode source of the placer gold is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE111 
Alaska Resource Data File 

Page 225 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 There has been only surface exploration. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE111 
Alaska Resource Data File 

Page 226 

Site name(s): Unnamed (south wall of lower Yanert Glacier) 

Site type: Occurrence 

ARDF no.: HE112 

Latitude: 63.59 Quadrangle: HE C-2 

Longitude: 147.71 

Location description and accuracy:

 This occurrence is at an elevation of about 5,000 feet, on the south wall of lower Yanert 

Galcier. The map site is about 4.8 miles northeast of Nenana Mountain, in the NE1/4 of 

sec. 27, T. 15 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 

half a mile. This is locality 21 of Cox and others (1989). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 The country rocks at this occurrence are Upper Triassic calcareous metasedimentary 

rocks and Jurassic to Cretaceous graywacke, intruded by Tertiary granite. The deposit 

consists of chalcopyrite-pyrite-pyrrhotite-bearing skarn at the granite contact (Cox and 

others, 1989). 

Alteration:

 Formation od skarn at granite contact. 

Age of mineralization:

 Probably Tertiary. 

Deposit model:

Cu skarn (Cox and Singer, 1986; model 18b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

18b 

Production Status: None 

HE112 
Alaska Resource Data File 

Page 227 

Site Status: Inactive 

Workings/exploration:

 There has only been surface sampling. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cox and others, 1989. 

Primary reference: Cox and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE112 
Alaska Resource Data File 

Page 228 

Site name(s): Nenana 

Site type: Prospect 

ARDF no.: HE113 

Latitude: 63.493 Quadrangle: HE B-2 

Longitude: 147.637 

Location description and accuracy:

 The Nenana prospect is at an elevation of about 4,800 feet, 1.75 miles west southwest 

of VABM 5756 (Fork). The map site is in the SW1/4 of sec. 30, T. 16 S., R. 1 E., of the 

Fairbanks Meridian. The location is accurate to within 1500 feet. This is location A-76 of 

Balen (1990: OFR 34-90). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Chalcopyrite, pyrite? sphalerite 

Gangue minerals: 

Geologic description:

 The area of the Nenana prospect is underlain by Upper Triassic, thin-bedded, commonly 

cross-bedded, carbonaceous shale, argillite, sandstone, and siltstone. The strata are cut by 

numerous dikes, sills, and plugs of altered diabase and gabbro, and by Upper Cretaceous?-Lower Tertiary granites (Wilson and others, 1998). The prospect consists of pyrite?, chalcopyrite, and sphalerite disseminated in the sedimentary rocks. 

Alteration:

 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Upper Triassic host rocks. 

Deposit model:

Besshi massive sulfide (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24b 

Production Status: None 

HE113 
Alaska Resource Data File 

Page 229 

Site Status: Inactive 

Workings/exploration:

 Exploration consisted of rock-chip and soil sampling (unpublished report for the New 

Alaska Syndicate, 1977). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE113 
Alaska Resource Data File 

Page 230 

Site name(s): Unnamed (west of lower West Fork Glacier) 

Site type: Prospect 

ARDF no.: HE114 

Latitude: 63.482 Quadrangle: HE B-2 

Longitude: 147.577 

Location description and accuracy:

 This prospect is at an elevation of about 5,100 feet, on the crest of a ridge above the 

west wall of lower West Fork Glacier. The map site is about a mile south-southeast of 

VABM 5756 (Fork) in the SE1/4 of sec. 32, T. 16 S., R. 1 E., of the Fairbanks Meridian. 

The location is accurate to within 1,500 feet. This is location A-75 of Balen (1990: OFR 

90-34). 

Commodities: 

 Main: Au, Pb 

 Other: 

Ore minerals: 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this prospect include: Upper Triassic calcareous shale, 

argillite, sandstone and siltstone, and numerous dikes, sills, and plugs of altered diabase 

and gabbro; Upper Cretaceous(?) or Lower Tertiary granitic plutons; and younger, Lower 

Tertiary granitic plutons (Wilson and others, 1998). The prospect consists of gold- and 

lead-bearing quartz veins. The ore mineral(s) are unspecified. 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Polymetallic vein (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

HE114 
Alaska Resource Data File 

Page 231 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 There has only been surface sampling to date. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE114 
Alaska Resource Data File 

Page 232 

Site name(s): Cleopatra 

Site type: Prospect 

ARDF no.: HE115 

Latitude: 63.48 Quadrangle: HE B-2 

Longitude: 147.60 

Location description and accuracy:

 The Cleopatra prospect is at an elevation of about 4,500 feet on the north wall of an 

east-flowing, unnamed tributary to the West Fork Glacier. It is about 1.6 miles southsouthwest of VABM 5,756 (Fork), in the NW1/4 of sec. 5, T. 17 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 0.5 mile. This is location 25 of Cox 

and others (1989). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of the Cleopatra prospect include Upper Triassic, intensely deformed and metamorphosed, interbedded shale, argillite, sandstone, siltstone, 

and argillaceous limestone; and dikes, sills, and small plugs of altered diabase and gabbro 

(Wilson and others, 1998). These rocks in turn are intruded by Upper Cretaceous(?) and 

Lower Tertiary granite plutons. The deposit consists of stratabound disseminated chalcopyrite and pyrrhotite in the metasedimentary rocks. 

Alteration:

 The rocks are strongly leached and altered to gossan at the surface. 

Age of mineralization:

 The disseminated sulfides are probably syngenetic with their Late Triassic host rocks. 

Deposit model:

Besshi massive sulfide (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE115 
Alaska Resource Data File 

Page 233 

24b 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Rocks are stream-sediment sampling, ground EM and magnetic geophysical surveys 

were conducted in the mid-1970s (unpublished report for the New Alaska Syndicate, 

1977). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cox and others, 1989; Wilson and others, 1998. 

Primary reference: Cox and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE115 
Alaska Resource Data File 

Page 234 

Site name(s): Unnamed (west wall of West Fork Glacier) 

Site type: Prospect 

ARDF no.: HE116 

Latitude: 63.474 Quadrangle: HE B-2 

Longitude: 147.589 

Location description and accuracy:

 This prospect is at an elevation of about 4,200 feet in a creek draining the west wall of 

West Fork Glacier. The map site is in the NW1/3 of sec. 5, T. 17 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 2,000 feet. This is location 26 of Cox 

and others (1989), location A-74 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Ag, Cu, Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 The are of this prospect is underlain by Upper Triassic, thin-bedded, commonly crossbedded, carbonaceous shale, argillite, sandstone, and siltstone. The strata are cut by numerous dikes, sills, and plugs of altered diabase and gabbro (Wilson and others, 1998), 

and by Upper Cretaceous?-Lower Tertiary granites. The strata are complexly folded. The 

prospect is described as a polymetallic replacement deposit containing chalcopyrite, pyrrhotite, and sphalerite (Cox and others, 1989). 

Alteration:

 

Age of mineralization:

 

Deposit model:

Polymetallic replacement (Cox and Singer, 1986; model 19a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

19a 

Production Status: None 

HE116 
Alaska Resource Data File 

Page 235 

Site Status: Inactive 

Workings/exploration:

 Surface exploration only, to date. Soil sampling, stream-sediment sampling, ground EM 

and magnetic geophysical surveys were conducted in the mid-1970's (unpublished report 

for the New Alaska Syndicate, 1977). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

MacKevett and Holloway, 1977 (OFR 77-169A); Cobb, 1978 (OFR 78-1062); Cox and 

others, 1989; Wilson and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE116 
Alaska Resource Data File 

Page 236 

Site name(s): Unnamed (between upper West Fork and Yanert glaciers) 

Site type: Occurrence 

ARDF no.: HE117 

Latitude: 63.590 Quadrangle: HE C-1 

Longitude: 147.294 

Location description and accuracy:

 This occurrence is at an elevation of about 6,300 feet, about midway between upper 

West Fork and Yanert Galciers. The map site is about 3.9 miles south-southwest of 

Mount Deborah, in the NE1/4 of sec. 26, T. 15 S., R. 2 E., of the Fairbanks Meridian. The 

location is accurate to within 2,000 feet. This is location 27 of Sherwood and others 

(1976). 

Commodities: 

 Main: Au, Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are Upper Triassic calcareous shale, argillite, sandstone, siltstone, and limestone cut by numerous dikes, sills, and plugs of altered diabase and gabbro (Wilson and others, 1998). The deposit apparently consists of 

disseminations of chalcopyrite in metasedimentary rocks near the contact of altered gabbro. Samples of the chalcopyrite-bearing rock contained 980 ppm copper and 0.2 ppm 

gold (Sherwood and others, 1976). 

Alteration:

 

Age of mineralization:

 Late Triassic or younger. 

Deposit model:

Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24b(?) 

HE117 
Alaska Resource Data File 

Page 237 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Sherwood and others, 1976; Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE117 
Alaska Resource Data File 

Page 238 

Site name(s): Unnamed (southeast of Hess Mountain) 

Site type: Prospect 

ARDF no.: HE118 

Latitude: 63.62 Quadrangle: HE C-1 

Longitude: 147.12 

Location description and accuracy:

 This prospect is at an elevation of about 8,500 feet, about 1.6 miles southeast of the 

summit of Hess Mountain. The map site is in the NW1/4 of sec. 14, T. 15 S., R. 3 W., of 

the Fairbanks Meridian. The location is accurate to within 1 mile. 

Commodities: 

 Main: Au, Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this prospect are Upper Triassic, carbonaceous, calcareous shale, argillite, sandstone, and siltstone. This sequence is cut by dikes, sills, and plugs 

altered diabase and gabbro (Wilson and others, 1998). The deposit presumably consists of 

auriferous chalcopyrite and possibly other sulfides, disseminated in the sedimentary and 

(or) intrusive rocks. 

Alteration:

 

Age of mineralization:

 Late Triassic or younger. 

Deposit model:

Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24b(?) 

Production Status: None 

HE118 
Alaska Resource Data File 

Page 239 

Site Status: Inactive 

Workings/exploration:

 There has been only surface mapping and sampling. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corp) 

Last report date: 4/7/00 

HE118 
Alaska Resource Data File 

Page 240 

Site name(s): Unnamed 

Site type: Occurrence 

ARDF no.: HE119 

Latitude: 63.70 Quadrangle: HE C-1 

Longitude: 147.42 

Location description and accuracy:

 This occurrence is at an elevation of about 5,700 feet in the northwest wall of the glacier at the head of the West Fork Little Delta River. The site is in the SE1/4 of sec. 18, T. 

14 S., R. 2 E., of the Fairbanks Meridian. The location is accurate to within 2,000 feet. 

This is location 10 of Sherwood and others (1976). 

Commodities: 

 Main: Au, Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are the Devonian Yanert Fork sequence, an intensely deformed, thick marine sequence dominantly of metasedimentary 

and metavolcanic rocks. Most of the sequence is siliceous mudstone, argillite, slate, phyllite, semischist, impure quartzite, and metachert. The sequence is intruded by gabbroic 

dikes and sills (Wilson and others, 1998). The occurrence consists of chalcopyrite and 

pyrite disseminations in gabbro, and of a gossan zone near a gabbro sill. Samples contained 833 ppm copper and 0.2 to 0.5 ppm gold (Sherwood and others, 1976). 

Alteration:

 Local conspicuous iron staining. 

Age of mineralization:

 Gabbro hostrocks are undated but may be Triassic. 

Deposit model:

Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE119 
Alaska Resource Data File 

Page 241 

24b? 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. Samples contained 833 ppm copper and 0.2 to 0.5 ppm gold 

(Sherwood and others, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Sherwood and others, 1976; Wilson and others, 1998. 

Primary reference: Sherwood and others, 1976 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE119 
Alaska Resource Data File 

Page 242 

Site name(s): West Fork 

Site type: Prospect 

ARDF no.: HE120 

Latitude: 63.81 Quadrangle: HE D-1 

Longitude: 147.49 

Location description and accuracy:

 The West Fork prospect is at an elevation of about 4,500 feet, in the south wall of an 

east-flowing branch of West Fork Little Delta River. The map site is about 4 miles southwest of the junction of Forgotten Creek, in the NW1/4 of sec. 11, T. 13 S., R. 1 E., of the 

Fairbanks Meridian. The location is accurate to within 0.5 mile. 

Commodities: 

 Main: Ag, Pb, Zn 

 Other: Cu 

Ore minerals: Galena, pyrite, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The country rocks at the West Fork prospect are Upper Devonian(?) felsic metavolcanic 

rocks consisting of schist and phyllite, locally containing relict phenocrysts of quartz, orthoclase, and plagioclase (Wilson and others, 1998). The deposit consists of stratiform 

layers of massive pyrite, galena, and sphalerite, accompanied by quartz and sericite. Samples of a 20-30-centimeter-wide massive-sulfide horizon contained 3.68% lead, 4.05% 

zinc, 131 grams of silver per tonne and 0.38 grams of gold per tonne (www.grayd.com, 

1999). 

Alteration:

 Quartz and sericite. 

Age of mineralization:

 Mineralization was probably syngenetic with the Upper Devonian(?) host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE120 
Alaska Resource Data File 

Page 243 

28a 

Production Status: None 

Site Status: Active 

Workings/exploration:

 The prospect has been explored by surface sampling, geophysical work, and one drill 

hole (Inmet Mining, personal communication, 1999). Samples of a 20-30-centimeter-wide 

massive-sulfide horizon contained 3.68% lead, 4.05% zinc, 131 grams of silver per tonne 

and 0.38 grams of gold per tonne (www.grayd.com, 1999). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998; www.grayd.com, 1999. 

Primary reference: www.grayd.com, 1999 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE120 
Alaska Resource Data File 

Page 244 

Site name(s): Unnamed (headwaters of Glory Creek) 

Site type: Prospect 

ARDF no.: HE121 

Latitude: 63.857 Quadrangle: HE D-1 

Longitude: 147.482 

Location description and accuracy:

 This prospect is at an elevation of about 5,100 feet, about 1 mile east of the junction of 

Glory Creek with Dry Creek. The site is about 2 miles southwest of VABM New, in sec. 

23, T. 12 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 2,000 

feet. This is location 6 of Clark and Cobb (1972). 

Commodities: 

 Main: Pb, Sb, Zn 

 Other: Ag, Au 

Ore minerals: Galena, pyrite, sphalerite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this prospect are Lower Paleozoic to possibly Upper 

Precambrian Birch Creek Schist. Lower Tertiary and Upper Cretaceous intrusive rocks 

occur 1.2 miles southwest of the prospect. The deposit is in Birch Creek Schist and consists of quartz veins and pods containing pyrite, stibnite, galena, and sphalerite (Joesting, 

1943). 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

Production Status: None 

HE121 
Alaska Resource Data File 

Page 245 

Site Status: Inactive 

Workings/exploration:

 Only been surface exploration has been reported. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Joesting, 1942 (MR 194-11); Joesting, 1943; Berg and Cobb, 1967; Clark and Cobb, 

1972; Cobb, 1978 (OFR 78-1062). 

Primary reference: Berg and Cobb, 1967 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE121 
Alaska Resource Data File 

Page 246 

Site name(s): Red Mountain Creek; WTF (Western Tundra Flats); Dry 

Creek 

Site type: Prospect 

ARDF no.: HE122 

Latitude: 63.92 Quadrangle: HE D-1 

Longitude: 147.38 

Location description and accuracy:

 This site represents an area of about a square mile between upper Red Mountain Creek 

and Dry Creek. The map site is at an elevation of about 4,300 feet, on the west wall of the 

valley of upper Red Mountain Creek, in the SW1/4 of sec. 33, T. 11 S., R. 2 E., of the 

Fairbanks Meridian. This is locality 7 of Cox and others (1989). 

Commodities: 

 Main: Ag, Au, Cu, Pb, Zn 

 Other: 

Ore minerals: Chalcopyrite, galena, sphalerite 

Gangue minerals: Chlorite, feldspar, quartz, white mica 

Geologic description:

 The country rocks in the area of this prospect are mapped as the Lower Mississippian to 

Middle Devonian Totatlanika Schist, composed predominantly of metavolcanic and metavolcaniclastic rocks, and subordinate amounts of intercalated metasedimentary rocks 

(Wilson and others, 1998). The dominant structural fabric on the property is a strong mylonitic foliation, and there is a consistent east-northeasterly lineation that plunges at about 

20-30 degrees. The deposit is in greenschist-grade metasedimentary rocks and altered rhyolite schist, and consists of stratiform bodies of massive sulfides that occur on the northern and southern limbs of an east-trending synclinal fold. The southern limb of the syncline contains three ore horizons that dip to the north at about 70 to 80 degrees (Schuster, 

1998). These are referred to as the DC zones, which have been subdivided into the DCNorth, DC-South, and DC-17 zones. 

 The DC-North zone is defined by a 2-kilometer-long EM conductor. This zone has been 

further subdivided into three areas: Discovery, which roughly bisects the EM anomaly; 

Lago Creek, which is 200-400 meters west of the Discovery area; and Fosters Creek, 

about 800 meters west of the Discovery area. In the Fosters Creek area, drilling has intercepted a 29-meter interval (true width) grading 6.22 percent zinc, 2.56 percent lead and 

0.22 percent copper, as well as 182.8 grams silver and 1.03 grams gold per tonne. A 3.7-

HE122 
Alaska Resource Data File 

Page 247 

meter intercept in the hole produced assay results as high as 23.58 percent zinc, 8.46 percent lead, 1.02 percent copper, and 531.5 grams silver and 2.24 grams gold (Schuster, 

1998). The DC-South zone is virtually unexplored except for a few reconnaissance drill 

holes. The DC-17 zone is a 15-meter-thick bed of pyrite (with minor amounts of lead and 

zinc) that is believed to be genetically related to other zones. 

 The northern limb of the syncline dips gently to the south and hosts the WTF zone, a 

layer of massive sulfides 0.3 to 5 meters thick that has been tested by 26 widely-spaced 

drill holes (Schuster, 1998). 

Alteration:

 The footwall schist contains chlorite and sericite. 

Age of mineralization:

 Mineralization was syngenetic with the Lower Mississippian to Middle Devonian host 

rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Exploration of the area includes an EM geophysical survey and extensive drilling. Press 

releases indicate that over 60 drill holes totaling approximately 7600 m have been drilled 

to date (Robertson, 1998; The Northern Miner, 1998 and 1999: v. 84, nos. 26 and 52). 

Production notes:

 

Reserves:

 Reserves for part of this deposit have been estimated at 1.10 million tonnes grading 

0.15 percent copper, 2.5 percent lead, 7.9 percent zinc, and 270 grams silver, and 1.9 

grams of gold per tonne (Nokleberg and others, 1987). An estimate based on 38 of 60 

holes drilled to test the southern limb of the syncline gave an inferred resource of 2.9 million tonnes grading 4.4 percent zinc, 1.9 percent lead, 0.2 percent copper, and 0.55 gram 

gold and 93.6 grams silver per tonne. Included in this estimate is a higher-grade core of 

1.5 million tonnes grading 6.4 percent zinc, 2.9 percent lead, 0.3 percent copper, and 0.79 

gram gold and 123.8 grams silver per tonne. The bulk of the resource is in the Fosters 

Creek and Discovery zones, respectively in pyritic sedimentary rocks and intensely altered rhyolite. On the north limb of the syncline, the WTF resource currently (1999) 

stands at 2.8 million tonnes grading 6 percent zinc, 2.5 percent lead, 0.1percent copper, 

and 0.9 gram gold and 178.2 grams silver per tonne (The Northern Miner, 1998 and 1999: 

HE122 
Alaska Resource Data File 

Page 248 

v. 84, nos. 26 and 52). 

Additional comments:

 

References:

Nokleberg and others, 1987; Cox and others, 1989; Nokleberg and others, 1994; Robertson, 1998; Schuster, 1998; The Northern Miner, 1998; Wilson and others, 1998; The 

Northern Miner, 1999. 

Primary reference: Nokleberg and others, 1994 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE122 
Alaska Resource Data File 

Page 249 

Site name(s): Unnamed (flank of Dry Creek) 

Site type: Prospect 

ARDF no.: HE123 

Latitude: 63.93 Quadrangle: HE D-1 

Longitude: 147.46 

Location description and accuracy:

 This prospect is at an elevation of about 3,600 feet on the northwest side of Dry Creek, 

about 3.4 miles west-northwest of the junction of Red Mountain Creek. The map site is at 

about the center of sec. 25, T. 11 S., R. 1 E., of the Fairbanks Meridian. The location is 

accurate to within 0.5 mile. 

Commodities: 

 Main: Ag, Pb, Zn 

 Other: Cu 

Ore minerals: Galena, sphalerite 

Gangue minerals: Chlorite, quartz, sericite 

Geologic description:

 The country rocks at this prospect are the Lower Mississippian to Middle Devonian Totatlanika Schist, composed predominantly of mafic and felsic metavolcanic and metavolcaniclastic rocks, pelitic schist, and minor marble (Wilson and others, 1998). The deposit 

consists of massive-sulfide lenses in schist (Cox and others, 1989). The lenses are mainly 

galena and sphalerite, accompanied by chlorite, quartz, and sericite. The schist in the footwall is altered to chlorite and sericite. 

Alteration:

 Footwall alteration zones containing chlorite and sericite. 

Age of mineralization:

 Mineralization was probably syngenetic with the Lower Mississippian to Middle Devonian host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE123 
Alaska Resource Data File 

Page 250 

28a 

Production Status: None 

Site Status: Active? 

Workings/exploration:

 Surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 The deposit at this prospect is considered to be a satellite of the deposit at the Red 

Mountain prospect (HE122). 

References:

Nokleberg and others, 1987; Cox and others, 1989; Nokleberg and others, 1994; Wilson 

and others, 1998. 

Primary reference: Cox and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE123 
Alaska Resource Data File 

Page 251 

Site name(s): Rod; LEA Creek 

Site type: Prospect 

ARDF no.: HE124 

Latitude: 63.97 Quadrangle: HE D-1 

Longitude: 147.46 

Location description and accuracy:

 The Rod (LEA Creek) prospect is at an elevation of about 4,700 feet, on the east side of 

a south-flowing tributary to Dry Creek. The map site is about 1 mile south of VABM 

6463 (Art), in the NW1/4 of sec. 13, T. 11 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1 mile. 

Commodities: 

 Main: Ag, Pb, Zn 

 Other: Cu 

Ore minerals: Galena, sphalerite 

Gangue minerals: Chlorite, quartz, sericite 

Geologic description:

 The country rocks at the Rod (LEA Creek) prospect are the Lower Mississippian to 

Middle Devonian Totatlanika Schist, composed predominantly of felsic and mafic metavolcanic and metavolcaniclastic rocks, pelitic schist, and minor marble (Wilson and others, 1998). The deposit consists of massive-sulfide lenses in schist (www.grayd.com, 

1999). The lenses are mainly galena and sphalerite, accompanied by chlorite, quartz, and 

sericite. 

Alteration:

 

Age of mineralization:

 Mineralization was probably syngenetic with the Lower Mississippian to Middle Devonian host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

HE124 
Alaska Resource Data File 

Page 252 

Production Status: None 

Site Status: Active 

Workings/exploration:

 Only preliminary surface sampling and hand-trenching has been conducted to date 

(1999). 

Production notes:

 

Reserves:

 

Additional comments:

 Also see HE122 and HE125. 

References:

Wilson and others, 1998; www.grayd.com, 1999. 

Primary reference: www.grayd.com, 1999 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE124 
Alaska Resource Data File 

Page 253 

Site name(s): Unnamed (head of Slide Creek) 

Site type: Prospect 

ARDF no.: HE125 

Latitude: 63.98 Quadrangle: HE D-1 

Longitude: 147.39 

Location description and accuracy:

 This prospect is at an elevation of about 5,300 feet at the head of Slide Creek. The map 

site is about 1.3 mile due east of VABM 6463 (Art), in the SE1/4 of sec. 7, T. 11 S., R. 2 

E., of the Fairbanks Meridian. The location is accurate to within 1.5 miles. 

Commodities: 

 Main: Ag, Pb, Zn 

 Other: Au, Cu 

Ore minerals: Galena, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The country rocks at this prospect are the Lower Mississippian to Middle Devonian Totatlanika Schist, composed predominantly of mafic and felsic metavolcanic and metavolcaniclastic rocks (Wilson and others, 1998). The deposit consists of massive-sulfide 

lenses in schist. The lenses are chiefly galena and sphalerite, accompanied by quartz and 

sericite. The footwall schist is altered to chlorite and sericite. 

Alteration:

 Footwall schist is altered to chlorite and sericite. 

Age of mineralization:

 Mineralization was probably syngenetic with the Lower Mississippian to Middle Devonian host rocks. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

HE125 
Alaska Resource Data File 

Page 254 

Production Status: None 

Site Status: Active? 

Workings/exploration:

 There reportedly has been surface exploration and possibly limited drilling. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998; www.grayd.com, 1999. 

Primary reference: www.grayd.com, 1999 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE125 
Alaska Resource Data File 

Page 255 

Site name(s): Smog 

Site type: Occurrence 

ARDF no.: HE126 

Latitude: 63.99 Quadrangle: HE D-1 

Longitude: 147.39 

Location description and accuracy:

 This occurrence is at an elevation of about 4,200 feet, on the north side of an eastflowing tributary to upper Slide Creek. The map site is about 1.7 miles northeast of 

VABM 6463 (Art), in the SE1/4 of sec. 5, T. 11 S., R. 2 E., of the Fairbanks Meridian. 

The location is accurate to within 1.5 miles. This is locality 6 of Cox and others (1989). 

Commodities: 

 Main: Pb, Zn 

 Other: Ag, Au, Cu 

Ore minerals: Chalcopyrite, galena, pyrite, sphalerite 

Gangue minerals: Chlorite, quartz, sericite 

Geologic description:

 The country rock in the area of this occurrence is the Lower Mississippian to Middle 

Devonian Totatlanika Schist. The deposit is in schist and consists of lenses of massive 

chalcopyrite, galena, pyrite, and sphalerite, accompanied by chlorite, quartz, and sericite 

(www.grayd.com, 1999). 

Alteration:

 Footwall alteration zones contain chlorite and sericite. 

Age of mineralization:

 The deposit is interpretted to have formed synchronously with the deposition of the 

mid-Paleozoic protoliths of the Totatlanika Schist. 

Deposit model:

Kuroko massive sulfide (Cox and Singer, 1986; model 28a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

28a 

HE126 
Alaska Resource Data File 

Page 256 

Production Status: None 

Site Status: Active? 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cox and others, 1989; www.grayd.com, 1999. 

Primary reference: Cox and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE126 
Alaska Resource Data File 

Page 257 

Site name(s): Newman Creek 

Site type: Prospect 

ARDF no.: HE127 

Latitude: 63.98 Quadrangle: HE D-1 

Longitude: 147.26 

Location description and accuracy:

 This placer gold prospect is near the mouth of Newman Creek, a tributary to Dry Creek. 

The site is in sec. 12, T. 11 S., R. 2 E., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Newman Creek drainage basin includes Tertiary sandstone and Devonian Totatlanika 

Schist. The lode source of the placer gold is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Probably inactive 

Workings/exploration:

 There are only surface placer workings, all dating to 1912 or earlier. 

HE127 
Alaska Resource Data File 

Page 258 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1912. 

Primary reference: Capps, 1912 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE127 
Alaska Resource Data File 

Page 259 

Site name(s): Unnamed (on Dry Creek) 

Site type: Prospect 

ARDF no.: HE128 

Latitude: 63.96 Quadrangle: HE D-1 

Longitude: 147.29 

Location description and accuracy:

 This placer prospect is on Dry Creek between the mouths of Newman Creek and Red 

Mountain Creek, a distance of approximately 4 miles. The map site is at the midpoint of 

the placer activity, in sec. 14, T. 11 S., R. 2 E., of the Fairbanks Meridian. This is locality 

60 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Dry Creek is a placer gold prospect. part of the creek drains Tertiary sandstone, conglomerate, shale, and lignite, and part drains Early Mississippian to Middle Devonian Totatlanika Schist, composed predominantly of metavolcanic rocks (Wilson and others, 

1998). The auriferous gravels are 4 to 8 feet deep and contain up to 0.17 ounce of gold 

per cubic yard (Capps, 1912). The upper part of the creek is incised into schist; mining 

there was hampered by abundance of large boulders and unstable ground (Cobb, 1978: 

OFR 78-1062). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE128 
Alaska Resource Data File 

Page 260 

Production Status: Undetermined. 

Site Status: Probably inactive 

Workings/exploration:

 Surface development only. The auriferous gravels contain up to 0.17 ounce of gold per 

cubic yard (Capps, 1912). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Capps, 1912; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062); Bundtzen and others, 

1984; Wilson and others, 1998. 

Primary reference: Capps, 1912 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE128 
Alaska Resource Data File 

Page 261 

Site name(s): Unnamed (middle or upper Newman Creek) 

Site type: Prospect 

ARDF no.: HE129 

Latitude: 63.95 Quadrangle: HE D-1 

Longitude: 147.26 

Location description and accuracy:

 This placer gold prospect is on Newman Creek, a tributary to Dry Creek. The area of 

placer activity extends in both directions from the map site, which is at about the center of 

sec. 24, T. 11 S., R. 2 E., of the Fairbanks Meridian. This is locality 61 of Clark and Cobb 

(1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Parts of Newman Creek drain an area underlain by Tertiary sandstone, conglomerate, 

shale, and lignite, and other portions drain an area underlain by Lower Mississippian to 

Middle Devonian Totatlanika Schist. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Inactive 

HE129 
Alaska Resource Data File 

Page 262 

Workings/exploration:

 There are surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Brooks, 1911; Capps, 1912; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-1062). 

Primary reference: Capps, 1912 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE129 
Alaska Resource Data File 

Page 263 

Site name(s): Portage Creek 

Site type: Mine 

ARDF no.: HE130 

Latitude: 63.91 Quadrangle: HE D-1 

Longitude: 147.14 

Location description and accuracy:

 This placer gold mine is on Portage Creek, an east-flowing tributary to the West Fork 

Little Delta River. The area of placer mining is near the landing strip, where Portage 

Creek turns from south to east. The map site is in sec. 3, T. 12 S., R. 3 E., of the Fairbanks Meridian. This is location 62 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Most of Portage Creek drains Miocene to Pliocene Nenana Gravel and Eocene coalbearing strata. The Nenana Gravel consists of poorly-consolidated, buff to reddishbrown, fluvial conglomerate and coarse grained sandstone interbedded with mudflow deposits and thin lignite beds (Wilson and others, 1998). The placer gold in Portage Creek 

probably was derived from small gold paleoplacers in the Nenana Gravel. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

HE130 
Alaska Resource Data File 

Page 264 

Site Status: Active? 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Brooks, 1910; Capps, 1912; Smith, 1936 (B 864); Smith, 1938; Smith, 1939; Smith, 1942 

(B 917); Smith, 1942 (B 926); Smith, 1942 (B 933); Cobb, 1978 (OFR 78-1062); Wilson 

and others, 1998. 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE130 
Alaska Resource Data File 

Page 265 

Site name(s): Honolulu 

Site type: Prospect 

ARDF no.: HE131 

Latitude: 63.03 Quadrangle: HE A-5 

Longitude: 149.48 

Location description and accuracy:

 The Honolulu prospect is at an elevation of about 2,950 feet in the headwaters of Honolulu Creek. The location is accurate to within 0.5 mile. The map site is in the SW1/4 of 

sec. 4, T. 22 S., R. 10 W., of the Fairbanks Meridian. This is location 36 of Cox and others, 1989; location D-22 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Ag, Au, Cu 

 Other: Pb, Sn, Zn 

Ore minerals: Chalcopyrite, galena, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The area of the Honolulu prospect is underlain by Lower Cretaceous to Upper Jurassic 

graywacke and argillite cut by Tertiary granites. The deposit is in highly altered granitic 

rock and consists of sulfide-rich quartz veinlets (Balen and others, 1991). The sulfide 

minerals are chalcopyrite, galena, and sphalerite. High tin assays suggest that cassiterite 

also is present. One channel sample collected across a 60-foot exposure of altered granite 

contained 1.09 ounce of silver per ton, 0.03 ounce of gold per ton, 1.5% copper, and 250 

ppm tin. The highest grade samples contained 141 ounces of silver per ton, 0.05 ounce of 

gold per ton, 2.3% copper, 6.3% lead, 6% zinc, and 795 ppm tin (Balen, 1990: OFR 34-

90; Balen and others, 1991). 

Alteration:

 Extensive silicification and phyllic alteration. 

Age of mineralization:

 The sulfide minerals are in altered Tertiary granite. 

Deposit model:

Polymetallic veins (Cox and Singer, 1986; model 22c) 

HE131 
Alaska Resource Data File 

Page 266 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 Surface workings, and two shallow Winkie holes drilled in the mid-1970's (unpublished 

report for the New Alaska Syndicate, 1976). One channel sample collected across a 60-

foot exposure of altered granite contained 1.09 ounce of silver per ton, 0.03 ounce of gold 

per ton, 1.5% copper, and 250 ppm tin. The highest grade samples contained 141 ounces 

of silver per ton, 0.05 ounce of gold per ton, 2.3% copper, 6.3% lead, 6% zinc, and 795 

ppm tin (Balen, 1990: OFR 34-90; Balen and others, 1991). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cox and others, 1989; Balen, 1990 (OFR 34-90); Balen and others, 1991. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE131 
Alaska Resource Data File 

Page 267 

Site name(s): Honolulu Creek 

Site type: Occurrences 

ARDF no.: HE132 

Latitude: 63.03 Quadrangle: HE A-5 

Longitude: 149.32 

Location description and accuracy:

 Placer gold occurs in several places along Honolulu Creek, from its mouth upstream to 

Honolulu Pass. The map site is at about the midpoint of these occurrences, in the NW1/4 

of sec. 8, T. 22 S., R. 9 W., of the Fairbanks Meridian. This is location D-21 of Balen 

(1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Honolulu Creek hosts several placer gold occurrences over a distance of about 12 miles. 

The occurrences were identified during regional sampling by the Bureau of Land Management in the 1980's (Balen, 1990: OFR 34-90; Balen and others, 1991). Lower Honolulu 

Creek drains Tertiary (Eocene?) granodiorite and granite intruding Lower Cretaceous and 

Upper Jurassic metaturbidite (Wilson and others, 1998). At the head of the drainage basin, the bedrock consists of thrust slices of Upper Triassic metavolcanic, metavolcaniclastic, and subordinate metasedimentary rocks intruded by small stocks of Tertiary felsic 

rocks. The probably multiple sources of the placer gold in Honolulu Creek are unknown, 

but the rocks in its drainage area contain auriferous lodes elsewhere in the Healy quadrangle (see, for example, HE133 and HE209). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

HE132 
Alaska Resource Data File 

Page 268 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Balen and others, 1991; Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE132 
Alaska Resource Data File 

Page 269 

Site name(s): North Carolina; Antimony Creek 

Site type: Prospect 

ARDF no.: HE133 

Latitude: 63.102 Quadrangle: HE A-5 

Longitude: 149.419 

Location description and accuracy:

 The North Carolina (Antimony Creek) prospect is at an elevation of about 3,600 feet on 

a spur north of upper Antimony Creek, a tributary of the East Fork Chulitna River. The 

map site is 0.5 mile southwest of VABM 4780 (Antimony), in sec. 14, T. 21 S., R. 10 W., 

of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is locality 

28 and 29 of Cobb (1978: OFR 78-1062). 

Commodities: 

 Main: Au, Sb 

 Other: 

Ore minerals: Gold, pyrite, stibnite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The country rocks in the area of the prospect consist mainly of Lower Cretaceous and 

Upper Jurassic, intensely deformed, metamorphosed flysch, probably several thousand 

meters thick (Wilson and others, 1998). The strata are intruded by felsite dikes, and a pyroxenite plug. The deposit consists of auriferous quartz-pyrite-stibnite veins that cut the 

flysch. A little gold also occurs in the margins of the felsite dikes. Samples contain up to 

37.5% antimony and 6 ppm gold (Hawley and others, 1968), and up to 28% antimony and 

520 ppb gold (Balen, 1990: OFR 34-90). 

Alteration:

 The stibnite is oxidized to stibiconite and kermesite. 

Age of mineralization:

 Veins cut Upper Jurassic to Lower Cretaceous metasedimentary rocks. 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

HE133 
Alaska Resource Data File 

Page 270 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 The property was explored in 1918 by two short tunnels. Samples contain up to 37.5% 

antimony and 6 ppm gold (Hawley and others, 1968), and up to 28% antimony and 520 

ppb gold (Balen, 1990: OFR 34-90). 

Production notes:

 In 1919 approximately 3 tons of ore was stockpiled but never shipped. 

Reserves:

 

Additional comments:

 

References:

Capps, 1919; Joesting, 1942 (MR 194-11); Joesting, 1943; Berg and Cobb, 1967; Hawley 

and others, 1968 (OFR 337); Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Capps, 1919 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE133 
Alaska Resource Data File 

Page 271 

Site name(s): East Fork Chulitna River; Hole 

Site type: Occurrences 

ARDF no.: HE134 

Latitude: 63.14 Quadrangle: HE A-5 

Longitude: 149.44 

Location description and accuracy:

 Placer gold occurs from the mouth of the East Fork Chulitna River, upstream as far as 

the map site, which is in the NE1/4 of sec. 34, T. 20 S., R. 10 W., of the Fairbanks Meridian. This is location D-26 of Balen (1990: OFR 34-90). The location is accurate to within 

1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The East Fork Chulitna River drains an area containing porphyry, skarn, and polymetallic, metamorphic, and epithermal vein deposits, all having significant Au contents. These 

deposits probably are the source of placer gold in the East Fork Chulitna River. Two 

placer samples from the site contained traces of gold (Balen, 1990: OFR 34-90). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE134 
Alaska Resource Data File 

Page 272 

Site Status: Inactive 

Workings/exploration:

 Surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: (Balen, 1990 OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE134 
Alaska Resource Data File 

Page 273 

Site name(s): Middle Fork Chulitna River 

Site type: Occurrences 

ARDF no.: HE135 

Latitude: 63.15 Quadrangle: HE A-5 

Longitude: 149.49 

Location description and accuracy:

 Placer gold occurs along the Middle Fork Chulitna River, upstream from its junction 

with East Fork Chulitna River to about a mile above Colorado station on The Alaska 

Railroad. The map site is about at the midpoint of the occurrences, in the SE1/4 of sec. 

29, T. 20 S., R. 10 W., of the Fairbanks Meridian. This is location E-27 of Balen (1990: 

OFR 34-90). The location is accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The Middle Fork Chulitna River drains an area containing porphyry, skarn, and 

polymetallic and epithermal vein deposits all having significant gold contents. These deposits probably are the sources of the placer gold in Middle Fork. Of six samples collected from the placer, two contained measurable gold (Balen, 1990: OFR 34-90). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE135 
Alaska Resource Data File 

Page 274 

Site Status: Inactive 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE135 
Alaska Resource Data File 

Page 275 

Site name(s): Bull River 

Site type: Occurrence 

ARDF no.: HE136 

Latitude: 63.21 Quadrangle: HE A-5 

Longitude: 149.45 

Location description and accuracy:

 This placer gold occurrence is on Bull River, a tributary of the West Fork Chulitna 

River. The map site is in the NW1/4 of sec. 3, T. 20 S., and R. 10 W., of the Fairbanks 

Meridian. Placer activity has occurred downstream from the map site to the mouth of 

Costello Creek. This is location E-14 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The Bull River drainage area includes the Chulitna mineral district (for example, 

HE043), whose porphyry, skarn, and vein deposits all could be sources of placer gold. 

The richest of four samples of unspecified material collected by balen (1990: OFR 34-90) 

contained 1.5 ppm gold. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE136 
Alaska Resource Data File 

Page 276 

Site Status: Inactive 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE136 
Alaska Resource Data File 

Page 277 

Site name(s): East Fork Chulitna River 

Site type: Occurrences 

ARDF no.: HE137 

Latitude: 63.19 Quadrangle: HE A-5 

Longitude: 149.26 

Location description and accuracy:

 This site represents several placer gold occurrences along the East Fork Chulitna River. 

The occurrences are downstream for a distance of more than 2 miles from the map site, 

which is in the SW1/4 of sec 10, T. 20 S., R. 9 W., of the Fairbanks Meridian. This is location D-27 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: Sn 

Ore minerals: Cassiterite?, gold 

Gangue minerals: 

Geologic description:

 Placer samples taken from the East Fork Chulitna River, contain 6.7 ppm gold and 260 

ppm tin (Balen, 1990: OFR 34-90). Tin granites are reported on the western side of the 

Chulitna Valley (for example, HE056), and similar granites are also mapped in the East 

Fork Chulitna drainage area (Wilson and others, 1998). These granites may be the source 

of both the tin (cassiterite?) and the placer gold. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE137 
Alaska Resource Data File 

Page 278 

Site Status: Inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Kurtak and others, 1992; Wilson and others, 1998. 

Primary reference: (Balen, 1990 OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE137 
Alaska Resource Data File 

Page 279 

Site name(s): Unnamed (south head of Hardage Creek) 

Site type: Prospect 

ARDF no.: HE138 

Latitude: 63.124 Quadrangle: HE A-5 

Longitude: 149.315 

Location description and accuracy:

 This prospect is at an elevation of about 4,000 feet at the south head of Hardage Creek. 

The map site is 2.5 miles west northwest of VABM 5205 (Benbar), near the center of sec. 

5, T. 21 S., R. 9 W., of the Fairbanks Meridian. Location is accurate to within 1,500 feet. 

This is locality 34 of Cox and others (1989). 

Commodities: 

 Main: Au, Sb 

 Other: 

Ore minerals: Gold, pyrite, stibnite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The rocks in the area of this prospect are Lower Cretaceous and Upper Jurassic intensely deformed and locally highly metamorphosed argillite, conglomerate, and chert 

(Wilson and others, 1998). The metasedimentary rocks are cut by auriferous quartzstibnite veins. 

Alteration:

 

Age of mineralization:

 Early Cretaceous or younger. 

Deposit model:

Simple Sb (Cox and Singer, 1986; model 27d) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

27d 

Production Status: None 

HE138 
Alaska Resource Data File 

Page 280 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cox and others, 1989; Wilson and others, 1998. 

Primary reference: Cox and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE138 
Alaska Resource Data File 

Page 281 

Site name(s): Unnamed (west of Tsusena Creek) 

Site type: Prospect 

ARDF no.: HE139 

Latitude: 63.013 Quadrangle: HE A-4 

Longitude: 148.689 

Location description and accuracy:

 This prospect is at an elevation of about 4,000 feet, near the drainage divide between 

Tsusena and Portage creeks. The map site is about 2.2 miles south of peak 5896, in the 

NW1/4 of in sec. 15, T. 22 S., R. 6 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is locality D6 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Ag, Cu, Sn 

 Other: Pb, W, Zn 

Ore minerals: Cassiterite, chalcopyrite, galena, sphalerite, wolframite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this prospect are Upper Triassic calcareous shale, argillite, and siltstone cut by numerous dikes, sills, and plugs of altered diabase and gabbro. 

These rocks are overlain by Oligocene to Paleocene volcanic flows, and pyroclastic rocks, 

and intruded by diverse, Tertiary(?) hypabyssal plutons (Wilson and others, 1998). The 

deposit consists of tin- and silver-bearing quartz veins and a mineralized shear-zone. The 

ore minerals are cassiterite, chalcopyrite, galena, sphalerite, and wolframite. Samples of 

the deposit contained as much as 26.5 ounces of silver per ton, 0.55% tin, 1.2% lead, 

5.4% zinc, and 0.66% copper (Balen, 1991). 

Alteration:

 

Age of mineralization:

 Early Tertiary(?). 

Deposit model:

Sn veins (Cox and Singer, 1986; 15b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE139 
Alaska Resource Data File 

Page 282 

15b 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 The deposit was explored in 1980-81 by detailed geological mapping and geophysical 

exploration, but the claims later were allowed to lapse (Balen, 1991). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Balen and others, 1991; Wilson and others, 1998. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE139 
Alaska Resource Data File 

Page 283 

Site name(s): Green Spike; Firecliff 

Site type: Prospect 

ARDF no.: HE140 

Latitude: 63.100 Quadrangle: HE A-4 

Longitude: 148.885 

Location description and accuracy:

 The Green Spike prospect is at an elevation of about 4,500 feet, at the southwest head 

of East Fork Chulitna River. The map site is about 2.75 miles east southeast of VABM 

5854 (Alf), in the northwest corner of sec. 15, T. 21 S., R. 7 W., of the Fairbanks Meridian. The accuracy of this location is within 1,000 feet. This is locality D4 of Balen (1990: 

OFR 34-90). 

Commodities: 

 Main: Ag, Cu, Mo 

 Other: Sn, Zn 

Ore minerals: Cassiterite, chalcopyrite, molybdenite, pyrite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The Green Spike prospect is at the contact between a Tertiary granitic pluton and a 

slightly younger (Oligocene) complex of hypabyssal felsic dikes and remnants of a rhyolite flow. Both the granite and younger complex cut Jurassic to Cretaceous metamorphosed graywacke. The deposit is in the rhyolite, and consists of quartz veins containing 

cassiterite, chalcopyrite, molybdenite, pyrite, and sphalerite. Samples assay 0.48% copper, 

819 ppm zinc, 0.4 ounce of silver per ton, 13 ppm tin, and 25 ppm molybdenum (Balen 

and others, 1991). The high molybdenum-tin-silver values, the evolved intrusive hostrocks, and their younger age distinguish this deposit from the copper-gold-rich deposits 

on the other side of the Chulitna Valley (for example, HE043). 

Alteration:

 

Age of mineralization:

 Volcanic rocks hosting the deposit are considered Oligocene (Wilson and others, 1998). 

Deposit model:

Porphyry Sn (Cox and Singer, 1986; 20a) 

HE140 
Alaska Resource Data File 

Page 284 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

20a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Balen and others, 1991; Wilson and others, 1998. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE140 
Alaska Resource Data File 

Page 285 

Site name(s): Unnamed (tributary to East Fork Chulitna River) 

Site type: Occurrence 

ARDF no.: HE141 

Latitude: 63.17 Quadrangle: HE A-4 

Longitude: 148.96 

Location description and accuracy:

 This occurrence of placer gold is on an unnamed southeast-flowing tributary of the East 

Fork Chulitna River. The placer extends upstream from the map site, which is in the 

SE1/4 of sec. 19, T. 20 S., R. 7 W., of the Fairbanks Meridian. This is location D-3 of 

Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 This tributary drains an area underlain by Lower Cretaceous or Upper Jurassic turbidites 

and Lower Tertiary volcanic rocks (Wilson and others, 1998). Of 13 placer samples collected the highest values were 360 ppb gold and 110 ppm tin (Balen, 1990: OFR 34-90). 

The source of the placer gold and tin is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE141 
Alaska Resource Data File 

Page 286 

Site Status: Probably inactive 

Workings/exploration:

 Surface workings only to date. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE141 
Alaska Resource Data File 

Page 287 

Site name(s): Caribou 

Site type: Occurrence 

ARDF no.: HE142 

Latitude: 63.25 Quadrangle: HE B-4 

Longitude: 148.84 

Location description and accuracy:

 This placer gold prospect on an unnamed, northeast-flowing creek that drains into the 

lake in Caribou Pass, at the head of Middle Fork Chulitna River. The placer deposit extends for a distance of about a mile upstream from the map site, which is in the SW1/4 of 

sec. 23, T. 19 S., R. 7 W., of the Fairbanks Meridian. This is location D-2 of Balen (1990: 

OFR 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage area of the creek containing the Caribou gold placer prospect is underlain 

by Cretaceous or Jurassic turbidites and Lower Tertiary volcanic rocks (Wilson and others, 1998). A single sample of the placer contained 300 ppb gold and 8 ppm tin (Balen, 

1990: OFR 34-90). The source of the placer gold and the tin is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE142 
Alaska Resource Data File 

Page 288 

Site Status: Probably inactive 

Workings/exploration:

 There have only been surface workings to date. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE142 
Alaska Resource Data File 

Page 289 

Site name(s): Unnamed (adjacent to Cantwell Creek) 

Site type: Occurrence 

ARDF no.: HE143 

Latitude: 63.387 Quadrangle: HE B-4 

Longitude: 148.934 

Location description and accuracy:

 The prospect adjoins the northwest side of Cantwell Creek approximately 1,000 feet upstream from its junction with the Jack River and about 0.6 mile southeast of Cantwell. 

The site is in sec. 5, T. 18 S., R. 7 W., of the Fairbanks Meridian. The location is accurate 

to within 1500 feet. This is location 7 of Clark and Cobb (1972). 

Commodities: 

 Main: Mn 

 Other: 

Ore minerals: Rhodochrosite 

Gangue minerals: Quartz 

Geologic description:

 The host rocks are a melange of Paleozoic and upper Mesozoic sedimentary rocks. An 

8-foot-wide outcrop contains crushed and partially recrystallized rhodochrosite; other 

manganese minerals are present, but not identified. The deposit is probably localized 

along strands of the McKinley fault. 

Alteration:

 

Age of mineralization:

 Post-Mesozoic. 

Deposit model:

Epithermal Mn (Cox and Singer, 1986; model 25g) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

25g 

Production Status: None 

HE143 
Alaska Resource Data File 

Page 290 

Site Status: Inactive 

Workings/exploration:

 Surface samples contain as much as 33.35% manganese (Berg and Cobb,1967). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Warfield, 1954; Berg and Cobb, 1967; Clark and Cobb, 1972; Cobb, 1978 (OFR 78-

1062). 

Primary reference: Cobb, 1978 (OFR 78-1062) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE143 
Alaska Resource Data File 

Page 291 

Site name(s): Unnamed (southwest foot of Reindeer Hills) 

Site type: Prospect 

ARDF no.: HE144 

Latitude: 63.39 Quadrangle: HE B-4 

Longitude: 148.84 

Location description and accuracy:

 This prospect is at an elevation of about 2,500 feet at the southwest foot of the Reindeer 

Hills. The map site is about a mile north of the Golden North Airport, in the N1/2 of sec. 

2, T. 18 S., R. 7 W., of the Fairbanks Meridian. The accuracy of the location is within 1 

mile. 

Commodities: 

 Main: Ag, Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this prospect are Lower Cretaceous to Upper Jurassic 

metagraywacke and argillite, cut by Tertiary granite and other felsic intrusive rocks. No 

other information about this prospect has been made public. The closest lode prospect 

(HE145) is a Cu-Mo porphyry deposit. 

Alteration:

 

Age of mineralization:

 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

HE144 
Alaska Resource Data File 

Page 292 

 There has been surface exploration only; no assays or deposit description have been 

made public. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE144 
Alaska Resource Data File 

Page 293 

Site name(s): Unnamed (west end of Reindeer Hills) 

Site type: Occurrence 

ARDF no.: HE145 

Latitude: 63.401 Quadrangle: HE B-4 

Longitude: 148.866 

Location description and accuracy:

 This occurrence is at an elevation of about 2,900 feet, on the western end of the Reindeer Hills. The map site is in the NE1/4 of sec. 34, T. 17 S., R. 7 W., of the Fairbanks 

Meridian. The location is accurate to within 1500 feet. This is location 11 of Clark and 

Cobb (1972). 

Commodities: 

 Main: Cu, Mo 

 Other: 

Ore minerals: Chalcopyrite, molybdenite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this occurrence include Lower Cretaceous to Upper Jurassic, monotonous, intensely deformed and locally highly metamorphosed, turbidites, 

and Oligocene granitic and other felsic intrusive rocks that cut the strata. The deposit consists of chalcopyrite and molybdenite in the Oligocene intrusive rocks (Berg and Cobb, 

1967). 

Alteration:

 

Age of mineralization:

 Probably Oligocene. 

Deposit model:

Porphyry Cu-Mo(?) (Cox and Singer, 1986; 21a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

21a(?) 

Production Status: None 

HE145 
Alaska Resource Data File 

Page 294 

Site Status: Inactive 

Workings/exploration:

 There has been surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Berg and Cobb, 1967. 

Primary reference: Berg and Cobb, 1967 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE145 
Alaska Resource Data File 

Page 295 

Site name(s): Windy Creek 

Site type: Prospect 

ARDF no.: HE146 

Latitude: 63.43 Quadrangle: HE B-4 

Longitude: 148.96 

Location description and accuracy:

 This placer gold prospect is on Windy Creek, a tributary to the Jack River. The area of 

activity extends from the mouth of Windy Creek, upstream for about 3 miles. The map 

site is at the upper end of the placer activity, at the center of sec. 19, T. 17 S., R. 7 W., of 

the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Windy Creek drains an area underlain by the Paleocene to Late Cretaceous Cantwell 

Formation, and by Mesozoic metasedimentary rocks. The lode source of the placer gold 

is not known. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

HE146 
Alaska Resource Data File 

Page 296 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE146 
Alaska Resource Data File 

Page 297 

Site name(s): Unnamed (northwest flank of Reindeer Hills) 

Site type: Occurrence 

ARDF no.: HE147 

Latitude: 63.424 Quadrangle: HE B-4 

Longitude: 148.861 

Location description and accuracy:

 This occurrence is at an elevation of about 2,800 feet on the northwest flank of the 

Reindeer Hills. The map site is in the SE1/4 of sec. 22, T. 17 S., R. 7 W., of the Fairbanks 

Meridian. The location is accurate to within 1500 feet. This is location 8 of Clark and 

Cobb (1972). 

Commodities: 

 Main: Cu, Ni 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are Lower Cretaceous to Upper Jurassic, monotonous, intensely deformed and locally highly metamorphosed turbidites. The 

occurrence consists of copper- and nickel-bearing sulfide minerals disseminated in the 

sedimentary rocks (Clark and Cobb, 1972). 

Alteration:

 

Age of mineralization:

 The sulfide minerals may be syngenetic with their Lower Cretaceous to Upper Jurassic 

sedimentary host rocks. 

Deposit model:

Besshi massive sulfide(?) (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24b(?) 

Production Status: None 

HE147 
Alaska Resource Data File 

Page 298 

Site Status: Inactive 

Workings/exploration:

 There has been surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Clark and Cobb, 1972. 

Primary reference: Clark and Cobb, 1972 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE147 
Alaska Resource Data File 

Page 299 

Site name(s): Unnamed (southeastern flank of Reindeer Hills) 

Site type: Occurrence 

ARDF no.: HE148 

Latitude: 63.416 Quadrangle: HE B-4 

Longitude: 148.683 

Location description and accuracy:

 This occurrence is at an elevation of about 3,600 feet, on the southeast flank of the 

northwest end of the Reindeer Hills. The map site is in the NW1/4 of sec. 27, T. 17 S., R. 

6 W., of the Fairbanks Meridian. The location is accurate to within 1500 feet. This is location 10 of Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The area of this occurrence is underlain by a Cretaceous melange comprising tectonic 

blocks of Paleozoic and upper Mesozoic cherty tuff, chert, argillite, and fine-grained volcanic sandstone, in a matrix of argillite, slate, shale, and graywacke (Wilson and others, 

1998). The deposit is described only as a gold-rich occurrence (Berg and Cobb, 1967). 

Alteration:

 

Age of mineralization:

 Cretaceous or younger, mineralization is hosted in Cretaceous metasediments. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

HE148 
Alaska Resource Data File 

Page 300 

Workings/exploration:

 There are surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Berg and Cobb, 1967; Wilson and others, 1998. 

Primary reference: Berg and Cobb, 1967 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE148 
Alaska Resource Data File 

Page 301 

Site name(s): Unnamed (north of upper Schist Creek) 

Site type: Occurrence 

ARDF no.: HE149 

Latitude: 63.472 Quadrangle: HE B-4 

Longitude: 148.614 

Location description and accuracy:

 This occurrence is at an elevation of about 4,500 feet, on a north-south ridge north of, 

and perpendicular to, upper Schist Creek. The map site is in the NW1/4 of sec. 1, T. 17 

S., R. 6 W., of the Fairbanks Meridian. The location is accurate to within 1500 feet. This 

is location 9 of Clark and Cobb (1972). 

Commodities: 

 Main: Ag, Cu, Mo 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are the Paleocene Cantwell Formation 

which consists of terrigenous sedimentary rocks, including a few thin coal beds, and Eocene-Oligocene granitic plutons that intrude the Cantwell (Wilson and others, 1998). The 

occurrence consists of unspecified copper, molybdenum and silver minerals in the granitic rocks (Clark and Cobb, 1972). 

Alteration:

 

Age of mineralization:

 Probably Eocene-Oligocene. 

Deposit model:

Porphyry Cu-Mo(?) (Cox and Singer, 1986; 21a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

21a(?) 

Production Status: None 

HE149 
Alaska Resource Data File 

Page 302 

Site Status: Inactive 

Workings/exploration:

 There has been surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Clark and Cobb, 1972; Wilson and others, 1998. 

Primary reference: Clark and Cobb, 1972 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE149 
Alaska Resource Data File 

Page 303 

Site name(s): Unnamed (southwest of Pyramid Peak) 

Site type: Prospect 

ARDF no.: HE150 

Latitude: 63.433 Quadrangle: HE B-3 

Longitude: 148.371 

Location description and accuracy:

 This prospect is at an elevation of about 4,400 feet, approximately 1.2 mile southwest of 

Pyramid Peak. The map site is in the NW1/4 of sec. 20, T. 17 S., R. 4 W., of the Fairbanks Meridian. The location is accurate to within 1500 feet. This is location 24 of Cox 

and others (1989). 

Commodities: 

 Main: Au, Cu 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this prospect are Upper Triassic shale and siltstone, cut 

by Lower Tertiary granite. The deposit is described as a gold- and copper-bearing 

polymetallic vein (Cox and others, 1989). 

Alteration:

 

Age of mineralization:

 Probably Early Tertiary. 

Deposit model:

Polymetallic veins (Cox and Singer, 1986; model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: None 

Site Status: Inactive 

HE150 
Alaska Resource Data File 

Page 304 

Workings/exploration:

 There has been surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cox and others, 1989. 

Primary reference: Cox and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE150 
Alaska Resource Data File 

Page 305 

Site name(s): Unnamed (southwest of Pyramid Peak) 

Site type: Occurrence 

ARDF no.: HE151 

Latitude: 63.421 Quadrangle: HE B-3 

Longitude: 148.394 

Location description and accuracy:

 The prospect is at an elevation of about 4,100 feet, about two miles southwest of the 

summit of Pyramid Peak. The map site is in the SW1/4 of sec. 19, T. 17 S., R. 4 W., of 

the Fairbanks Meridian. The location is accurate to within 1,500 feet. 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrite, sphalerite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this prospect are Upper Triassic, generally thin-bedded, 

commonly cross-bedded, carbonaceous shale, argillite, sandstone, and siltstone. The strata 

are cut by numerous dikes, sills, and plugs of altered diabase and gabbro, and by Upper 

Cretaceous?-Lower Tertiary granites (Wilson and others, 1998). The prospect consists of 

pyrite, chalcopyrite, and sphalerite disseminated in the bedded rocks. 

Alteration:

 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Upper Triassic host rocks. 

Deposit model:

Besshi massive sulfide (Cox and Singer, 1986; model 24b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24b 

Production Status: None 

HE151 
Alaska Resource Data File 

Page 306 

Site Status: Inactive 

Workings/exploration:

 Surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Cox and others, 1989; Wilson and others, 1998. 

Primary reference: Cox and others, 1989 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE151 
Alaska Resource Data File 

Page 307 

Site name(s): Unnamed (southwest of Pyramid Peak) 

Site type: Prospect 

ARDF no.: HE152 

Latitude: 63.39 Quadrangle: HE B-3 

Longitude: 148.41 

Location description and accuracy:

 This placer gold prospect is on an unnamed south-flowing tributary to the Nenana 

River, about a mile downstream from Wells Creek. Placer activity has occurred from the 

mouth of the tributary, upstream for an unknown distance. The map site is in the SE1/4 of 

sec. 36, T. 17 S., R. 5 W., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The area of this placer prospect is underlain by Upper Triassic calcareous shale and siltstone, cut by dikes, sills, and plugs of altered diabase and gabbro (Wilson and others, 

1998). These rocks are intruded by LowerTertiary granite approximately 0.5 mile north of 

the prospect. The drainage basin contains two lode prospects (HE150 and HE151) as potential sources of placer gold. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE152 
Alaska Resource Data File 

Page 308 

Site Status: Probably inactive 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE152 
Alaska Resource Data File 

Page 309 

Site name(s): Wells Creek 

Site type: Prospect 

ARDF no.: HE153 

Latitude: 63.39 Quadrangle: HE B-3 

Longitude: 148.37 

Location description and accuracy:

 Placer gold occurs along Wells Creek from its mouth, upstream to the map site, which 

is in the NW1/4 of sec. 5, T. 18 S., R. 4 W., of the Fairbanks Meridian. The location is 

accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Wells Creek drainage basin is underlain by Upper Triassic argillite, sandstone, and siltstone; by dikes, sills, and plugs of altered diabase and gabbro; and by Lower Tertiary 

granite (Wilson and others, 1998). The source of placer gold on Wells Creek is unknown. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Probably inactive 

HE153 
Alaska Resource Data File 

Page 310 

Workings/exploration:

 There are only surface workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Wilson and others, 1998. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE153 
Alaska Resource Data File 

Page 311 

Site name(s): Seattle Creek 

Site type: Prospect 

ARDF no.: HE154 

Latitude: 63.32 Quadrangle: HE B-3 

Longitude: 148.26 

Location description and accuracy:

 This placer gold prospect is on Seattle Creek, a northeast-flowing tributary of the Nenana River between Stickwan and Lily creeks. The map site is in the NE1/4 of sec.35, T. 

18 S., R. 4 W., of the Fairbanks Meridian. Easy access is provided from the Denali Highway, which crosses Seattle Creek. Placer workings below the highway are occasionally 

referred to as Lower Seattle Creek. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Seattle Creek drains an area of faulted Mesozoic metasedimentary rocks, and Tertiary 

intrusive and extrusive rocks. The lode source for the placer gold is not known. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Active? 

HE154 
Alaska Resource Data File 

Page 312 

Workings/exploration:

 Surface only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE154 
Alaska Resource Data File 

Page 313 

Site name(s): Unnamed (west of upper Butte Creek) 

Site type: Prospect 

ARDF no.: HE155 

Latitude: 63.15 Quadrangle: HE A-3 

Longitude: 148.04 

Location description and accuracy:

 This prospect is at an elevation of about 4,200 feet, near the head of an unnamed, southeast-flowing tributary to upper Battle Creek. The map site is just north of the center of 

sec. 25, T. 20 S., R. 3 W., of the Fairbanks Meridian. The location is accurate to within 

one mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Arsenopyrite, pyrite 

Gangue minerals: Chlorite, quartz, sericite 

Geologic description:

 The country rock at this prospect is Jurassic or Cretaceous metagraywacke and argilite. 

The deposit consists of quartz-chlorite-sericite veins that contain arsenopyrite and pyrite. 

Samples of the vein assay 10 to 100 ppb gold (Anonymous, 1997). 

Alteration:

 Phyllic. 

Age of mineralization:

 Jurassic or younger. 

Deposit model:

Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a 

Production Status: None 

HE155 
Alaska Resource Data File 

Page 314 

Site Status: Inactive 

Workings/exploration:

 Seven drill holes were completed at the prospect in 1991 (Anonymous, 1997). 

Production notes:

 

Reserves:

 

Additional comments:

 Drill core, logs, and assays from this prospect are available at the Alaska Materials Center. 

References:

Anonymous, 1997. 

Primary reference: Anonymous, 1997 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE155 
Alaska Resource Data File 

Page 315 

Site name(s): Upper Butte Creek 

Site type: Occurrences 

ARDF no.: HE156 

Latitude: 63.06 Quadrangle: HE A-2 

Longitude: 147.92 

Location description and accuracy:

 Placer gold occurs along upper Butte Creek, downstream from the mouth of Gold 

Creek to the map site, which is in the SW1/4 of sec. 27, T. 21 S., R. 2 W., of the Fairbanks Meridian. This is location B-10 of Balen (1990: 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Upper Butte Creek drains an area underlain by metasedimentary and intrusive rocks, 

presumably of Mesozoic or Tertiary age. The placer gold was probably derived from the 

erosion of auriferous lodes, such as those at HE156, HE172, and HE173. Samples collected by the BLM all contained small anounts of gold (Balen, 1990 OFR 90-34). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

Site Status: Active? 

HE156 
Alaska Resource Data File 

Page 316 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE156 
Alaska Resource Data File 

Page 317 

Site name(s): Unnamed (northwest of the head of Watana River) 

Site type: Occurrence 

ARDF no.: HE157 

Latitude: 63.028 Quadrangle: HE A-2 

Longitude: 147.950 

Location description and accuracy:

 This occurrence is at an elevation of about 3,200 feet, northwest of the head of Watana 

River. The map site is about 1.7 miles southwest of the 'elbow' of Butte Creek, in the 

NW1/4 of sec. 9, T. 22 S., R. 2 W., of the Fairbanks Meridian. The location is accurate to 

within 2500 feet. This is location B11 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence are Upper Jurassic or Lower Cretaceous 

metagraywacke cut by Lower Tertiary? granite. The occurrence is described as copperrich. Samples contain 38 ppm copper, 12 ppm lead, and 71 ppm zinc (Balen, 1990: OFR 

34-90). 

Alteration:

 

Age of mineralization:

 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

HE157 
Alaska Resource Data File 

Page 318 

 Surface samples only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE157 
Alaska Resource Data File 

Page 319 

Site name(s): Sweet Glory 

Site type: Occurrences 

ARDF no.: HE158 

Latitude: 63.01 Quadrangle: HE A-2 

Longitude: 147.81 

Location description and accuracy:

 The Sweet Glory placer gold claims are along an unnamed, north-northwest flowing 

tributary to Butte Creek. The tributary joins Butte Creek about 1.5 miles below where 

Butte Creek changes direction from south to east. The area of placer activity extends upstream from the mouth of the tributary to the map site, which is in the NE1/4 of sec. 18, 

T. 22 S., R. 1 W., of the Fairbanks Meridian. This is location B-12 of Balen (1990: OFR 

34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage area feeding the Sweet Glory gold placers is underlain by two geological 

units, each of which is a potential source of gold. The lower part of the drainage is Cretaceous to Jurassic interbedded conglomerate and sandstone, and flows and dikes of andesitic to latitic feldspar porphyry. The upper part of the drainage is greenstone. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE158 
Alaska Resource Data File 

Page 320 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 There has only been surface exploration. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE158 
Alaska Resource Data File 

Page 321 

Site name(s): Unnamed (at Peak 5532) 

Site type: Prospect 

ARDF no.: HE159 

Latitude: 63.009 Quadrangle: HE A-2 

Longitude: 147.733 

Location description and accuracy:

 This prospect is on Peak 5532, at the west-central edge of sec. 15, T. 22 S., R. 1 W., of 

the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is location B13 of Balen (1990: 34-90). 

Commodities: 

 Main: Cu, Pt, Pd 

 Other: Cr, Ni 

Ore minerals: Chalcopyrite, chromite, pentlandite, pyrrhotite 

Gangue minerals: 

Geologic description:

 The country rocks at this prospect are Middle or Upper Triassic Nikolai Greenstone, 

and probably cogenetic, ultramafic dikes that cut the greenstone. The deposit consists of 

disseminations and pods of chalcopyrite, chromite, pentlandite, and pyrrhotite in within 

the ultramafic intrusive rocks. Samples contain as much as 0.41% chromium, 0.15% copper, 0.11% nickel, 28 ppb palladium, and 140 ppb platinum (Balen and others, 1991). 

Alteration:

 

Age of mineralization:

 The ore minerals probably are magmatic segregations in the Triassic ultramafic 

hostrocks. 

Deposit model:

Cu-Ni-PGE (Cox and Singer, 1986; model 5) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

5 

Production Status: None 

HE159 
Alaska Resource Data File 

Page 322 

Site Status: Probably inactive 

Workings/exploration:

 There has only been surface sampling to date. 

Production notes:

 

Reserves:

 

Additional comments:

 This deposit was discovered in the 1980s, during a regional geologic reconnaissance by 

the Bureau of Land Management (Balen, 1990: OFR 34-90). 

References:

Balen, 1990 (OFR 34-90); Balen and others, 1991. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE159 
Alaska Resource Data File 

Page 323 

Site name(s): Unnamed (south of VABM Way) 

Site type: Occurrence 

ARDF no.: HE160 

Latitude: 63.006 Quadrangle: HE A-2 

Longitude: 147.644 

Location description and accuracy:

 This occurrence is at an elevation of about 4,000 feet, 1.5 miles south of VABM 5896 

(Way). The map site is in the SE1/4 of sec. 13, T. 22 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is location 38 of Clark and Cobb 

(1972). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of this occurrence consist of a 2,000-meter-thick sequence 

of Lower Permian? and Pennsylvanian, massive volcanic flows, breccias, and subordinate 

volcaniclastic rocks, all largely andesitic in composition (Wilson and others, 1998). The 

occurrence consists of pyrite and chalcopyrite disseminated in the volcanic rocks. 

Alteration:

 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Lower Permian - Pennsylvanian 

host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

Production Status: None 

HE160 
Alaska Resource Data File 

Page 324 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Kaufman, 1964 (GR4); Berg and Cobb, 1967; Clark and Cobb, 1972; Wilson and others, 

1998. 

Primary reference: Kaufman, 1964 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE160 
Alaska Resource Data File 

Page 325 

Site name(s): Sure Shot 

Site type: Prospect 

ARDF no.: HE161 

Latitude: 63.011 Quadrangle: HE A-2 

Longitude: 147.639 

Location description and accuracy:

 The Sure Shot prospect is at an elevation of about 3,900 feet, 1.5 miles south of VABM 

5896 (Way). The map site is in the NW1/4 of sec. 18, T. 22 S., R. 1 E., of the Fairbanks 

Meridian. The location is accurate to within 1,000 feet. This is location 39 of Clark and 

Cobb (1972), location B-14 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 The country rocks in the area of the Sure Shot prospect consist of a 2,000-meter-thick 

sequence of Lower Permian? and Pennsylvanian, volcanic rocks, massive volcanic flows, 

breccias, and subordinate volcaniclastic rocks, all largely andesitic in composition 

(Wilson and others, 1998). The prospect consists of pyrite and chalcopyrite disseminated 

in the volcanic rocks. Samples contain 4 ppb gold and 153 ppm copper (Balen, 1990 OFR 

34-90). 

Alteration:

 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Lower Permian - Pennsylvanian 

host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

HE161 
Alaska Resource Data File 

Page 326 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface samples only. Samples contain 4 ppb gold and 153 ppm copper (Balen, 1990 

OFR 34-90). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Kaufman, 1964 (GR4); Berg and Cobb, 1967; Clark and Cobb, 1972; Balen, 1990 (OFR 

34-90); Wilson and others, 1998. 

Primary reference: Kaufman, 1964 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE161 
Alaska Resource Data File 

Page 327 

Site name(s): Unnamed (mountains south of lower Butte Creek) 

Site type: Occurrence 

ARDF no.: HE162 

Latitude: 63.017 Quadrangle: HE A-2 

Longitude: 147.641 

Location description and accuracy:

 This occurrence is located at an elevation of approximately 4,300 feet in the mountains 

south of lower Butte Creek, and 0.75 mile south of VABM 5896 (Way). The map site is 

near the south and of the west boundary of sec. 7, T. 22 S., on the boundary of R. 1 W., 

and R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 The area of this occurrence is underlain by a 2,00-meter-thick sequence of Lower Permian? and Pennsylvanian, massive volcanic flows, breccias, and subordinate volcaniclastic rocks, all largely andesitic in composition (Wilson and others, 1998). The occurrence 

consists of pyrite and chalcopyrite disseminated in the volcanic rocks. 

Alteration:

 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Lower Permian? and Pennsylvanian host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

Production Status: None 

HE162 
Alaska Resource Data File 

Page 328 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Saunders, 1961; Kaufman, 1964 (GR4); Berg and Cobb, 1967; Clark and Cobb, 1972; 

Wilson and others, 1998. 

Primary reference: Saunders, 1961 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE162 
Alaska Resource Data File 

Page 329 

Site name(s): Unnamed (near VABM Way) 

Site type: Occurrence 

ARDF no.: HE163 

Latitude: 63.033 Quadrangle: HE A-2 

Longitude: 147.620 

Location description and accuracy:

The site is located at an elevation of approximately 4,500 feet, 0.5 mile northeast of 

VABM 5896 (Way). The site is in the SE1/4 of sec. 6, T. 22 S., R. 1 E., of the Fairbanks 

Meridian. The location is accurate to within 1000 feet. This is location 40 of Clark and 

Cobb (1972). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, malachite, pyrite 

Gangue minerals: 

Geologic description:

 This occurrence is close to a thrust separating a slice of Lower Permian? and Pennsylvanian andesitic volcanic rocks from Middle Triassic to Upper Pennsylvanian metasedimentary rocks. Numerous large diabasic and gabbroic dikes and sills occur throughout the 

area (Wilson and others, 1998). The occurrence consists of pyrite and chalcopyrite disseminated in the volcanic rocks, and of secondary malachite. 

Alteration:

 Oxidation of copper mineral(s) to malachite. 

Age of mineralization:

 Sulfide minerals probably are syngenetic with their Triassic-Upper Pennsylvanian host 

rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

HE163 
Alaska Resource Data File 

Page 330 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Saunders, 1961; Kaufman, 1964 (GR4); Berg and Cobb, 1967; Clark and Cobb, 1972; 

Wilson and others, 1998. 

Primary reference: Kaufman, 1964 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE163 
Alaska Resource Data File 

Page 331 

Site name(s): Unnamed (near VABM Way) 

Site type: Occurrence 

ARDF no.: HE164 

Latitude: 63.034 Quadrangle: HE A-2 

Longitude: 147.640 

Location description and accuracy:

 This occurence is at an elevation of approximately 5,000 feet, 0.6 mile NW of VABM 

Way and about 2 miles south of Butte Creek. The site is in sec. 6, T. 22 S., R. 1 E., of the 

Fairbanks Meridian. The location is accurate to within 1000 feet. This is location 37 of 

Clark and Cobb (1972). 

Commodities: 

 Main: Cu, Fe 

 Other: 

Ore minerals: Azurite, bornite, chalcopyrite, magnetite, malachite, pyrite. 

Gangue minerals: Calcite, quartz 

Geologic description:

 This occurrence is hosted in Middle Triassic to Upper Pennsylvanian metasedimentary 

rocks, cut by numerous diabasic and gabbroic dikes and sills (Wilson and others, 1998). 

The deposit consists of copper sulfides disseminated in the mafic units, and of magnetite 

along fault zones separating limestone and argillite. The sulfide minerals are bornite, 

chalcopyrite, and pyrite. Malachite and azurite occur in cross-cutting carbonate veins. 

Some of the sulfide minerals probably are syngenetic with emplacement of their Upper 

Paleozoic or Triassic mafic hostrocks. The bornite may represent subsequent supergene 

enrichment. 

Alteration:

 

Age of mineralization:

 Some of the sulfide minerals probably are syngenetic with their Upper Paleozoic Triassic mafic host rocks. The bornite may represent subsequent supergene enrichment. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

HE164 
Alaska Resource Data File 

Page 332 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface workings and exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Moffit, 1912; Moffit, 1914; Moffit, 1915; Saunders, 1961; Kaufman, 1964 (GR4); Berg 

and Cobb, 1967; Clark and Cobb, 1972; Wilson and others, 1998. 

Primary reference: Clark and Cobb, 1972 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE164 
Alaska Resource Data File 

Page 333 

Site name(s): Unnamed (south of valley of lower Butte Creek)) 

Site type: Occurrence 

ARDF no.: HE165 

Latitude: 63.039 Quadrangle: HE A-2 

Longitude: 147.630 

Location description and accuracy:

 This occurrence is at an elevation of approximately 3,800 feet in the mountains south of 

the valley of lower Butte Creek. The map site is 0.75 miles north of VABM 5896 (Way), 

in the NW1/4 of sec. 6, T. 22 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is location 41 of Clark and Cobb (1972). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, malachite, pyrite 

Gangue minerals: 

Geologic description:

 The area of this occurrence is underlain by Middle Triassic to Upper Pennsylvanian interbedded black argillite and volcanic sandstone. The upper part of sequence contains 

about 100 of radiolarian chert. The sequence is cut by numerous diabasic and gabbroic 

dikes (Wilson and others, 1998). The occurrence consists of pyrite and chalcopyrite disseminated in the bedded rocks, and of secondary malachite. 

Alteration:

 Oxidation of copper minerals. 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Triassic-Upper Pennsylvanian 

host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

HE165 
Alaska Resource Data File 

Page 334 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Saunders, 1961; Kaufman, 1964 (GR4); Berg and Cobb, 1967; Clark and Cobb, 1972; 

Wilson and others, 1998. 

Primary reference: Saunders, 1961 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE165 
Alaska Resource Data File 

Page 335 

Site name(s): Unnamed (south of lower Butte Creek) 

Site type: Occurrence 

ARDF no.: HE166 

Latitude: 63.041 Quadrangle: HE A-2 

Longitude: 147.671 

Location description and accuracy:

 This occurrence is at an elevation of about 4,100 feet on the south wall of the valley of 

lower Butte Creek. The map site is about 1.2 miles northwest of VABM 5896 (Way), in 

the NW1/4 of sec. 1, T. 22 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1000 feet. This is location 36 of Clark and Cobb (1972). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 The area of this occurrence is ubderlain by Middle or Upper Triassic Nikoli Greenstone, 

Middle Triassic to Upper Pennsylvanian metasedimentary rocks, and numerous diabasic 

and gabbroic dikes and sills (Wilson and others, 1998). The occurrence is near a thrust 

fault that separates the two bedded units, and consists of pyrite and chalcopyrite disseminated in the metasedimentary rocks (Saunders, 1961). 

Alteration:

 

Age of mineralization:

 The sulfide minerals probably are syngenetic with their Triassic-Upper Pennsylvanian 

host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

24a 

HE166 
Alaska Resource Data File 

Page 336 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Saunders, 1961; Kaufman, 1964 (GR4); Berg and Cobb, 1967; Clark and Cobb, 1972. 

Primary reference: Saunders, 1961 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE166 
Alaska Resource Data File 

Page 337 

Site name(s): Nelson Discovery No. 2 

Site type: Occurrences 

ARDF no.: HE167 

Latitude: 63.05 Quadrangle: HE A-2 

Longitude: 147.65 

Location description and accuracy:

 Placer gold occurs along an unnamed, north-flowing tributary to Butte Creek. The occurrences extend for about a mile upstream from the map site, which is just north of the 

center of sec. 36, T. 21 S., R. 1 W., of the Fairbanks Meridian. This site is location B-3 of 

Balen (1990: OFR 34-90). The location is accurate to within 1 mile. 

Commodities: 

 Main: Au, Pd 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 This creek drains an area underlain by thrust slices of greenstone and turbidite. In addition to the gold there are reports of palladium in this placer (Balen, 1990: OFR 34-90). 

The source of the placer gold is unknown. The source of the palladium might be ultramafic rocks, such as those at HE159. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

HE167 
Alaska Resource Data File 

Page 338 

Site Status: Probably inactive 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE167 
Alaska Resource Data File 

Page 339 

Site name(s): Butte Creek 

Site type: Prospects 

ARDF no.: HE168 

Latitude: 63.06 Quadrangle: HE A-2 

Longitude: 147.63 

Location description and accuracy:

 These placer gold prospects are on Butte Creek, a tributary to the Susitna River. The 

area of placer activity extends from the mouth of Butte Creek, upstream for about 4 miles. 

The map site is in the SW1/4 of sec. 30, T. 21 S., R. 1 E., of the Fairbanks Meridian. This 

is location B-2 of Balen (1990; 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The north side of the Butte Creek drainage area is underlain by metasedimentary rocks 

intruded by Tertiary or Upper Cretaceous quartz diorite. The area contains several goldbearing lode (for example, HE172) and placer (for example, HE174) deposits that are 

likely sources for much of the gold in Butte Creek. Tributaries from the south also contain 

placer gold (HE167) and constitute another potential source area. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE168 
Alaska Resource Data File 

Page 340 

Site Status: Probably inactive 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Balen and others, 1991. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE168 
Alaska Resource Data File 

Page 341 

Site name(s): Gold Creek; Eagle Bluff 

Site type: Prospect 

ARDF no.: HE169 

Latitude: 63.102 Quadrangle: HE A-2 

Longitude: 147.831 

Location description and accuracy:

 The Gold Creek (Eagle Bluff) prospect consists of lode claims adjacent to Gold Creek, 

a tributary to Butte Creek. The map site is at an elevation of about 3,700 feet, on the north 

valley wall of Gold Creek. It is in the northwest corner of sec. 18, T. 21 S., R. 1 W., of the 

Fairbanks Meridian. The accuracy of the location is within 1,500 feet. This is location B-9 

of Balen (1990: 34-90), and location 159 of Kurtak and others (1992). 

Commodities: 

 Main: Ag, Au 

 Other: 

Ore minerals: Arsenopyrite(?), chalcopyrite, molybdenite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this prospect are Eocene(?) granodiorite and Lower 

Cretaceous to Upper Jurassic metamorphosed turbidites (Wilson and others, 1998). The 

prospect has been described as a silicified fault zone containing chalcopyrite, molybdenite, and arsenopyrite(?). Rock chip samples contain 0.25 ounce of gold per ton, 0.57% 

copper, 71 ppm molybdenum, and high values of bismuth and silver (Balen, 1991). 

Alteration:

 Alteration consists of narrow phyllic and silicified zones. 

Age of mineralization:

 Early Tertiary(?). 

Deposit model:

Polymetallic veins or low-sulfide Au-quartz veins (Cox and Singer, 1986; model 22c, 

36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE169 
Alaska Resource Data File 

Page 342 

22c, 36a 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 Surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Balen and others, 1991; Kurtak and others, 1992; Wilson and 

others, 1998. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE169 
Alaska Resource Data File 

Page 343 

Site name(s): Gold Creek 

Site type: Occurrence 

ARDF no.: HE170 

Latitude: 63.10 Quadrangle: HE A-2 

Longitude: 147.81 

Location description and accuracy:

 Placer claims are located along Gold Creek, a tributary to Butte Creek. The area of activity extends from Section 18, 2 miles downstream into Section 13. The map site is at the 

north boundary of sec. 18, T. 21 S., R. 2 W., of the Fairbanks Meridian. This is location 

68 of Clark and Cobb (1972); and location B-8 of Balen (1990: 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Gold Creek drains a basin underlain by Lower Tertiary granodiorite and granite that intrudes Lower Cretaceous and Upper Jurassic metagraywacke (Wilson and others, 1998). 

Placer gold was first discovered in 1903. The sources of the gold probably are lode deposits, such as those at Gold Hill (HE172) and Gold Creek East (HE169). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE170 
Alaska Resource Data File 

Page 344 

Site Status: Active? 

Workings/exploration:

 Surface placer workings dating from 1903. 

Production notes:

 

Reserves:

 

Additional comments:

 Discovered at the same time as Wickersham Creek (HE174) in 1903. 

References:

Moffit, 1912; Cobb, 1973 (B 1374); Clark and Cobb, 1972; Balen, 1990 (OFR 34-90); 

Wilson and others, 1998. 

Primary reference: Moffit, 1912 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE170 
Alaska Resource Data File 

Page 345 

Site name(s): Unnamed (near summit of Gold Hill) 

Site type: Prospect 

ARDF no.: HE171 

Latitude: 63.096 Quadrangle: HE A-2 

Longitude: 147.750 

Location description and accuracy:

 This prospect is at an elevation of about 4,400 feet, about 0.5 mile southwest of the 

summit of Gold Hill, the first ridge northwest of the junction of Butte and Wickersham 

creeks. The site is in sec. 16, T. 21 S., R. 1 W., of the Fairbanks Meridian. The location is 

accurate to within 1,000 feet. 

Commodities: 

 Main: Mo 

 Other: 

Ore minerals: Molybdenite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of this prospect are deformed and metamorphosed Lower 

Cretaceous and Upper Jurassic turbidites (Wilson and others, 1998) cut by Lower Tertiary 

to Upper Cretaceous(?) diorite and quartz monzonite (Smith and others, 1988). The deposit is in metasedimentary and altered intrusive rocks, and consists of widely-spaced 

zones of disseminated molybdenite. This deposit probably is related to other porphyrytype deposits in the Gold Hill area (HE172 and HE173). 

Alteration:

 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Porphyry Mo(?) (Cox and Singer, 1986; model 21b) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

21b? 

HE171 
Alaska Resource Data File 

Page 346 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 This prospect has been explored by soil sampling and trenching. At least two shallow 

drill holes totaling 220 feet, were completed in the 1970's (D.L. Stevens, oral communication, 1999). Geophysical exploration has included a regional aeromagnetic survey over 

the prospect and surrounding area, as well as ground magnetics, IP, and EM. 

Production notes:

 

Reserves:

 

Additional comments:

 See also HE172 and HE173. 

References:

Smith and others, 1975 (OFR 69); Balen, 1990 (OFR 34-90); Balen and others, 1991; 

Kurtak and others, 1992; Wilson and others, 1998. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE171 
Alaska Resource Data File 

Page 347 

Site name(s): Gold Hill, Su 

Site type: Prospect 

ARDF no.: HE172 

Latitude: 63.100 Quadrangle: HE A-2 

Longitude: 147.737 

Location description and accuracy:

 The Gold Hill (Su) prospect is at an elevation of about 4,800 feet, at the crest of the 

ridge northwest of the junction of Wickersham Creek and Butte Creek. The map site is 

near the north end of the boundary between secs. 15 and 16, T. 21 S., R. 1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is locality 8 of Smith 

and others (1975: OFR 69); locality B7 of Balen (1990: OFR 34-90). 

Commodities: 

 Main: Au, Cu 

 Other: Mo 

Ore minerals: Chalcopyrite, molybdenite, pyrite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The area of this prospect is underlain by intensely deformed and metamorphosed Lower 

Cretaceous and Upper Jurassic flysch (Wilson and others, 1998), cut by altered Lower 

Tertiary to Upper Cretaceous(?) diorite and quartz monzonite (Smith and others, 1988). 

The deposit consists of widely-spaced zones of sulfide minerals disseminated in the metasedimentary and altered intrusive rocks, and of stockwork quartz veinlets that carry molybdenite, chalcopyrite, pyrite, and sericite. Samples containing as much as 0.39 ounce of 

gold per ton have been reported (Balen and others, 1991). 

Alteration:

 Phyllic and propyllitic. 

Age of mineralization:

 Probably Late Cretaceous or younger. 

Deposit model:

Porphyry Cu-Au (Cox and Singer, 1986; model 20c) 

HE172 
Alaska Resource Data File 

Page 348 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

20c 

Production Status: None 

Site Status: Probably inactive 

Workings/exploration:

 Exploration has included soil sampling and trenching over a broad area. At least 2 shallow drill holes totalling 220 feet, were completed in the 1970s. Since then, at least 30 

holes have been drilled on the prospect (D.L. Stevens, oral communication, 1999). Geophysical exploration has included a regional aeromagnetic survey over the prospect and 

surrounding area, as well as ground magnetics, IP, and EM. Samples containing as much 

as 0.39 ounce of gold per ton have been reported (Balen and others, 1991). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith and others, 1975 (OFR 69); Balen, 1990 (OFR 34-90); Balen and others, 1991; 

Kurtak and others, 1992; Wilson and others, 1998. 

Primary reference: Balen and others, 1991 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE172 
Alaska Resource Data File 

Page 349 

Site name(s): Wickersham 

Site type: Occurrence 

ARDF no.: HE173 

Latitude: 63.110 Quadrangle: HE A-2 

Longitude: 147.702 

Location description and accuracy:

 This occurrence is at an elevation of about 3,600 feet on the west bank of an unnamed, 

southeast-flowing tributary of Wickersham Creek. It is about 6 miles west of the Denali 

Highway bridge over the Susitna River. The site is in the NW1/4 of sec. 11, T. 21 S., R. 

1 W., of the Fairbanks Meridian. The location is accurate to within 1,000 feet. This is locality 13 of Smith and others (1975: OFR 69). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 This occurrence consists of chalcopyrite disseminations in an altered intrusive rock that 

cuts metamorphosed Lower Cretaceous and Upper Jurassic flysch (Wilson and others, 

1998). The intrusive rock probably is an apophysis of the quartz monzonite stock at the 

Gold Hill prospect (HE172). The stock is correlated with the Tertiary (63 and 55 Ma) 

Butte Lake pluton (Smith and others, 1988). 

Alteration:

 

Age of mineralization:

 Tertiary, assuming that the deposit is indigenous to the intrusive host rock. 

Deposit model:

Porphyry Cu-Au (Cox and Singer, 1986; model 20c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

20c 

HE173 
Alaska Resource Data File 

Page 350 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface exploration only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith and others, 1975; Wilson and others, 1998. 

Primary reference: Smith and others, 1975 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE173 
Alaska Resource Data File 

Page 351 

Site name(s): Wickersham Creek 

Site type: Prospect 

ARDF no.: HE174 

Latitude: 63.11 Quadrangle: HE A-2 

Longitude: 147.69 

Location description and accuracy:

 This gold placer prospect is on Wickersham Creek about 3 miles upstream from its 

junction with Butte Creek. The map site is at the midpoint of a mile-long interval of 

placer activity, in sec. 11, T. 21 S., R. 1 W., of the Fairbanks Meridian. This is location 

69 of Clark and Cobb (1972); and location B-6 of Balen (1990: 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Wickersham Creek drains an area of Lower Tertiary granodiorite and granite that cuts 

Lower Cretaceous and Upper Jurassic deformed and metamorphosed flysch (Wilson and 

others, 1998). The placer gold was probably derived from the erosion of nearby lode deposits (HE171, HE172, and HE173). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

HE174 
Alaska Resource Data File 

Page 352 

Site Status: Active? 

Workings/exploration:

 Surface workings only. 

Production notes:

 Placer gold discovered in 1903, apparently in too small quantity to mine. 

Reserves:

 

Additional comments:

 

References:

Moffit, 1912; Moffit, 1914; Moffit, 1915; Clark and Cobb, 1972; Cobb, 1973 (B 1374); 

Cobb, 1978 (OFR 78-1062); Balen, 1990 (OFR 34-90); Wilson and others, 1998. 

Primary reference: Moffit, 1914 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE174 
Alaska Resource Data File 

Page 353 

Site name(s): Nay Nadeli 

Site type: Mine 

ARDF no.: HE175 

Latitude: 63.12 Quadrangle: HE A-2 

Longitude: 147.67 

Location description and accuracy:

 TheNay Nadeli placer gold deposit is on a west-flowing tributary of upper Wickersham 

Creek. The area of placer activity extends from the mouth of the tributary, upstream to the 

map site, which is in the SW1/4 of sec. 1, T. 21 S., R. 1 W., of the Fairbanks Meridian. 

This is location B-5 of Balen (1990: 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 This tributary of Wickersham Creek drains an area underlain by Tertiary or Cretaceous 

granodiorite, quartz monzonite and granite, and by Cretaceous or Jurassic turbidites 

(Wilson and others, 1998). The placer gold was probably derived from the erosion of 

auriferous lodes, such as those at HE172 and HE178. Placer samples collected by the 

BLM contained 0.0053 ounce of gold per cubic yard (Kurtak and others, 1992). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

HE175 
Alaska Resource Data File 

Page 354 

Site Status: Probably inactive 

Workings/exploration:

 Surface workings date from the early 1900s. 

Production notes:

 There was very small production of gold in the early 1900s. 

Reserves:

 

Additional comments:

 

References:

Moffit, 1912; Moffit, 1914; Moffit, 1915; Cobb, 1973 (B 1374); Clark and Cobb, 1972; 

Balen, 1990 (OFR 34-90); Kurtak and others, 1992; Wilson and others, 1998. 

Primary reference: Moffit, 1914 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE175 
Alaska Resource Data File 

Page 355 

Site name(s): Tammany Creek 

Site type: Occurrence 

ARDF no.: HE176 

Latitude: 63.09 Quadrangle: HE A-2 

Longitude: 147.66 

Location description and accuracy:

 This placer gold occurrence is on a south-flowing tributary to lower Wickersham Creek, 

just above its junction with Butte Creek. The tributary, locally called Tammany Creek, is 

not named on the topographic map. The area of activity extends about 2 miles downstream from the map site, which is in the SE1/4 of sec. 13, T. 21 S., R. 1 W., of the Fairbanks Meridian. This is location B-4 of Balen (1990: 34-90). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage basin of Tammany Creek contains Tertiary or Cretaceous granodiorite and 

Cretaceous or Jurassic turbidites (Wilson and others, 1998). The placer gold was probably 

derived from auriferous lodes, such as those at HE172 and HE178. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

HE176 
Alaska Resource Data File 

Page 356 

Site Status: Active? 

Workings/exploration:

 Surface placer workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90); Kurtak and others, 1992; Wilson and others, 1998. 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE176 
Alaska Resource Data File 

Page 357 

Site name(s): Indiana Pup 

Site type: Prospect 

ARDF no.: HE177 

Latitude: 63.14 Quadrangle: HE A-2 

Longitude: 147.55 

Location description and accuracy:

 This placer prospect is on Indiana Pup, an informally-named, east-flowing, a tributary 

of the Susitna River about 2 miles north of the Susitna River bridge. The area of placer 

activity extends an unknown distance both up stream and down stream from the map site, 

which is in the E1/2 of sec. 33, T. 20 S., R. 1 E., of the Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage basin of this creek includes Mesozoic metagraywacke and Quaternary 

surficial deposits, both of which are potential sources of alluvial gold. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

HE177 
Alaska Resource Data File 

Page 358 

Workings/exploration:

 There are only minor surface workings at this site. 

Production notes:

 

Reserves:

 

Additional comments:

 This small placer probably is of limited significance compared to other placers in the 

immediate area. 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE177 
Alaska Resource Data File 

Page 359 

Site name(s): Wickersham Discovery 

Site type: Occurrence 

ARDF no.: HE178 

Latitude: 63.10 Quadrangle: HE A-2 

Longitude: 147.58 

Location description and accuracy:

 This placer gold occurrence is on an unnamed, south-flowing creek that terminates near 

the northwest corner of Snodgrass Lake. The area of placer activity extends for about a 

mile on either side of the map site, which is in the SW1/4 of sec. 9, T. 21 S., R. 1 E., of 

the Fairbanks Meridian. This is location B-1 of Balen (1990: 34-90). The location is accurate to within 1 mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage areaof this creek is underlain by Lower Cretaceous or Upper Jurassic 

metamorphosed turbidite cut by Lower Tertiary granodiorite and granite (Wilson and others, 1998). These rocks locally contain gold-bearing lode deposits (for example, HE172). 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Undetermined. 

HE178 
Alaska Resource Data File 

Page 360 

Site Status: Active? 

Workings/exploration:

 Surface workings only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Balen, 1990 (OFR 34-90). 

Primary reference: Balen, 1990 (OFR 34-90) 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE178 
Alaska Resource Data File 

Page 361 

Site name(s): Unnamed (south of Sustina River bridge) 

Site type: Occurrence 

ARDF no.: HE179 

Latitude: 63.10 Quadrangle: HE A-2 

Longitude: 147.53 

Location description and accuracy:

 This placer gold occurrence is on the west bank of the Susitna River, about 0.5 mile below the Susitna River bridge. The area of placer activity may extend both upstream and 

downstream from the map site, which is in the NE1/4 of sec. 15, T. 21 S., R. 1 E., of the 

Fairbanks Meridian. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The drainage area near this site includes Mesozoic metagraywacke and Quaternary 

surficial deposits, both of which are potential sources of alluvial gold. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: None 

Site Status: Probably inactive 

HE179 
Alaska Resource Data File 

Page 362 

Workings/exploration:

 Minor surface placer workings. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): N. Van Wyck (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE179 
Alaska Resource Data File 

Page 363 

Site name(s): Unnamed (east of Susitna Lodge airstrip) 

Site type: Occurrence 

ARDF no.: HE180 

Latitude: 63.086 Quadrangle: HE A-1 

Longitude: 147.447 

Location description and accuracy:

 This occurrence is at an elevation of 2,420 feet, 0.75 mile due east of the south end of 

the Susitna Lodge airstrip. The map site is in the NW1/4 of sec. 19, T. 21 S., R. 2 E., of 

the Fairbanks Meridian. The location is accurate to within 200 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Bornite, chalcocite, chalcopyrite, malachite, native copper 

Gangue minerals: Epidote, quartz 

Geologic description:

 The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded 

volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 The deposit is in a hydrothermally altered shear zone in greenstone, and consists of 

quartz, epidote, chalcopyrite, and an iron carbonate mineral. Weathering produces malachite- and azurite-coated float and encrustations. 

 Glavinovich (1967) describes this occurrence as follows: 'Mineralized amygdaloidal andesite occurs in talus. Bornite, malachite and microscopic native copper associated with 

quartz pods occur in the andesite. The small quartz pods appear to have formed by replacement of the andesite. Bornite is later than the quartz and may, in part, be replacing 

it. Some of the strongly epidotized rock (greenstone) contains splashes of bornite, chalcocite (?) and malachite along fracture surfaces'. 

Alteration:

 Propylitic alteration of greenstone 

Age of mineralization:

 Triassic or younger. 

HE180 
Alaska Resource Data File 

Page 364 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Glavinovich, 1967; Nokleberg and others, 1992. 

Primary reference: Glavinovich, 1967 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE180 
Alaska Resource Data File 

Page 365 

Site name(s): Unnamed 

Site type: Occurrence 

ARDF no.: HE181 

Latitude: 63.0893 Quadrangle: HE A-1 

Longitude: 147.4403 

Location description and accuracy:

 This occurrence is at an elevation of about 3,800 feet, one mile due east of the center of 

the airstrip at Susitna Lodge. The map site is in the SW1/4 of sec. 18, T. 21 S., R. 2 E., of 

the Fairbanks Meridian. The location is accurate to about 250 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Azurite, bornite, chalcocite, malachite 

Gangue minerals: Epidote, iron carbonate, quartz 

Geologic description:

 The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded 

volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 The deposit is in a hydrothermally altered shear zone in greenstone and consists quartz, 

epidote, bornite, chalcocite, and an iron carbonate mineral. Weathering produces malachite- and azurite-coated float and encrustations. 

 Glavinovich (1967) described the occurrence as follows: 'Bornite, minor chalcocite and 

malachite occur as small discontinuous stringers in a narrow fracture zone. The fracture 

zone trends northeast, is about two inches wide and three feet in length. At both ends the 

zone narrows to a single fracture that continues along strike but is unmineralized. 

Gangue minerals include quartz and epidote. The paragenesis as determined in hand 

specimen is epidote, quartz, sulfides. The country rock is moderately altered andesite and 

is well jointed. Malachite coatings on joint faces are common.' 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

HE181 
Alaska Resource Data File 

Page 366 

 Triassic or younger. 

Deposit model:

Hydrothermally altered shear zone 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Kaufman, 1964; Glavinovich, 1967; Nokleberg and others, 1992. 

Primary reference: Glavinovich, 1967 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE181 
Alaska Resource Data File 

Page 367 

Site name(s): Unnamed 

Site type: Occurrence 

ARDF no.: HE182 

Latitude: 63.094 Quadrangle: HE A-1 

Longitude: 147.440 

Location description and accuracy:

 This occurrence is at an elevation of about 3,650 feet, 0.7 mile due east of south end of 

the east lake at Susitna Lodge. The map site is in the SW1/4 of sec. 18, T. 21 S., R. 2 E., 

of the Fairbanks Meridian. The location is accurate to within 500 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Bornite, chalcocite 

Gangue minerals: Quartz 

Geologic description:

 The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded 

volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 This occurrence was described by Glavinovich (1976) as follows: 'The mineralized 

sample was found in talus. The mineralization consists of malachite, minor chalcocite 

and bornite occurring in small quartz pods and stringers in an amygdaloidal andesite.' 

Alteration:

 

Age of mineralization:

 Triassic or younger. 

Deposit model:

Hydrothermally altered shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

HE182 
Alaska Resource Data File 

Page 368 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Glavinovich, 1967; Nokleberg and others, 1992. 

Primary reference: Glavinovich, 1967 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE182 
Alaska Resource Data File 

Page 369 

Site name(s): Unnamed (south of lower Windy Creek) 

Site type: Occurrence 

ARDF no.: HE183 

Latitude: 63.1104 Quadrangle: HE A-1 

Longitude: 147.4395 

Location description and accuracy:

 This occurrence is at an elevation of about 2,960 feet, about 1.75 miles north-northeast 

of Susitna Lodge. The map site is in the NW1/4 of sec. 7, T. 21 S., R. 2 E., of the Fairbanks Meridian. The location is accurate to within 250 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Azurite, chalcopyrite, malachite 

Gangue minerals: Epidote, iron carbonate, quartz 

Geologic description:

 The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded 

volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 The deposit is in a hydrothermally altered shear zone in greenstone, and consists of 

quartz, epidote, chalcopyrite, and an iron carbonate mineral. Weathering produces malachite- and azurite-coated float and encrustations. 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

Hydrothermally altered shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

HE183 
Alaska Resource Data File 

Page 370 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Saunders, 1961; Nokleberg and others, 1992. 

Primary reference: Saunders, 1961 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE183 
Alaska Resource Data File 

Page 371 

Site name(s): Greathouse 

Site type: Prospect 

ARDF no.: HE184 

Latitude: 63.092 Quadrangle: HE A-1 

Longitude: 147.395 

Location description and accuracy:

 This prospect is at an elevation of about 5,000 feet, south of Windy Creek and about 2.6 

miles east of Susitna Lodge. It is in sec.17,T. 21 S., R. 2 E., of the Fairbanks Meridian. 

The location is accurate to within 500 feet. The location is best shown in Kaufman (1964 

GR-4, site 3) and in Smith (1981, site 28). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Bornite, CHALCOCITE, covellite, MALACHITE 

Gangue minerals: Calcite, epidote, quartz 

Geologic description:

 The bedrock in the area of this prospect is the Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows, and minor interbedded volcaniclastic 

rocks, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 The deposit consists of bornite, chalcocite, covellite, and malachite in a 3-foot-wide, 

northwest-trending shear zone. A chip sample across the zone contained 11% copper. 

The mineralized portion of the shear zone is less than 100 feet long, but the zone can be 

traced for more than 1,000 feet. Both the hanging wall and the footwall are altered basalt, 

and the brecciated country rock in the shear zone is strongly epidotized. A 4-foot-wide 

diorite dike cuts the basalt near the shear zone (Smith, 1981). Glavinovich (1967) noted 

that chalcocite replaces bornite, covellite replaces chalcocite, and quartz and malachite 

crosscut the sulfides. Several other northwest-trending shear zones occur in the area but 

are not known to contain any copper minerals. This prospect is in a broad belt of small 

copper occurences that extends east-northeast for approximately 10 miles along the south 

side of Windy Creek. 

Alteration:

 The country rock has been epidotized adjacent to and along the shear zone. 

HE184 
Alaska Resource Data File 

Page 372 

Age of mineralization:

 Triassic or younger. 

Deposit model:

Mineralized shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 No surface workings; chip samples across a 3-foot-wide section of the shear zone contained as much as 11% Cu (Kaufman, 1964). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Kaufman, 1964 (GR4); Glavinovich, 1967; Smith, 1981; Nokleberg and others, 1992. 

Primary reference: Kaufman, 1964 (ADGGS GR 4) 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE184 
Alaska Resource Data File 

Page 373 

Site name(s): Unnamed (south of Windy Creek) 

Site type: Occurrence 

ARDF no.: HE185 

Latitude: 63.092 Quadrangle: HE A-1 

Longitude: 147.322 

Location description and accuracy:

 This occurrence is at an elevation of about 4,300 feet, about 4.75 miles east of Susitna 

Lodge and about 2 miles south of Windy Creek. The map site is on the boundary of secs. 

14 and 15, T. 21 S., R. 2 E., of the Fairbanks Meridian. The location is accurate to about 

500 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Azurite, chalcopyrite, malachite 

Gangue minerals: Epidote, iron carbonate, quartz 

Geologic description:

 The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded 

volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 The deposit is in a hydrothermally altered shear zone in greenstone, and consists of 

quartz, epidote, chalcopyrite, and an iron carbonate mineral. Weathering produces malachite- and azurite-coated float and encrustations. 

Alteration:

 Propylitic alteration of greenstones. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

Hydrothermally altered shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE185 
Alaska Resource Data File 

Page 374 

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Saunders, 1961; Nokleberg and others, 1992. 

Primary reference: Saunders, 1961 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE185 
Alaska Resource Data File 

Page 375 

Site name(s): Unnamed (south wall of valley of Windy Creek) 

Site type: Occurrence 

ARDF no.: HE186 

Latitude: 63.100 Quadrangle: HE A-1 

Longitude: 147.354 

Location description and accuracy:

 This occurrence is at an elevation of about 4,500 feet on the south wall of the valley of 

Windy Creek. It is near the north end of the boundary bwtween secs. 15 and 16, T. 21 S., 

R. 2 E., of the Fairbanks Meridian. The site is shown as site 30 in Smith (1981). The location is accurate to within 500 feet. 

Commodities: 

 Main: Copper 

 Other: 

Ore minerals: Azurite, chalcopyrite, malachite 

Gangue minerals: Epidote, iron carbonate 

Geologic description:

 The bedrock in the area of this occurrence is mainly the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, 

and radiolarian chert (Nokleberg and others, 1992). 

 This small mineral occurrence consists of a small shear zone along which hydrothermal 

alteration has produced epidote, chalcopyrite, and iron carbonate minerals. Weathering 

produces malachite- and azurite-coated float and encrustations. 

 This small mineral occurrence is one of many similar deposits in the Nikolai Greenstone. Most of these occurrences are part of an east-northeast trending fault zone several 

miles wide. 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

HE186 
Alaska Resource Data File 

Page 376 

Hydrothermally altered shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 This occurrence is about 0.25 miles southeast of HE187. 

References:

Glavinovich, 1967; Smith, 1981; Nokleberg and others, 1992. 

Primary reference: Glavinovich, 1967 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE186 
Alaska Resource Data File 

Page 377 

Site name(s): Unnamed (south wall of valley of Windy Creek) 

Site type: Occurrence 

ARDF no.: HE187 

Latitude: 63.104 Quadrangle: HE A-1 

Longitude: 147.359 

Location description and accuracy:

 This occurrence is at an elevation of about 4,400 feet on the south wall of the valley of 

Windy Creek. It is about 3.75 miles east northeast of Susitna Lodge, in the SE1/4 of sec. 

9, T. 21 S., R. 2 E., of the Fairbanks Meridian. The location is shown as site 29 in Smith 

(1981). The location is accurate to within 500 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Azurite, chalcopyrite, malachite 

Gangue minerals: Epidote, iron carbonate 

Geologic description:

 The bedrock in the area of this occurrence is mainly the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, 

and radiolarian chert (Nokleberg and others, 1992). 

 This small mineral occurrence consists of a small shear zone along which hydrothermal 

alteration has produced epidote, chalcopyrite, and iron carbonate minerals. Weathering 

produces malachite- and azurite-coated float and encrustations. 

 This small mineral occurrence is one of many similar deposits in the Nikolai Greenstone. Most of these occurrences are part of an east-northeast trending fault zone several 

miles wide. 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

HE187 
Alaska Resource Data File 

Page 378 

Hydrothermally altered shear zone 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Glavinovich, 1967; Smith, 1981; Nokleberg and others, 1992. 

Primary reference: Glavinovich, 1967 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE187 
Alaska Resource Data File 

Page 379 

Site name(s): Unnamed (south side of valley of Windy Creek) 

Site type: Occurrence 

ARDF no.: HE188 

Latitude: 63.11 Quadrangle: HE A-1 

Longitude: 147.31 

Location description and accuracy:

 The occurrence is at an elevation of about 4,600 feet on the south side of the valley of 

Windy Creek. It is in the SW1/4 of sec. 11, T. 21 S., R. 2 E., of the Fairbanks Meridian. 

The occurrence is shown as site 31 in Smith (1981). 

Commodities: 

 Main: Copper 

 Other: 

Ore minerals: Azurite, chalcopyrite, malachite 

Gangue minerals: Epidote, iron carbonate 

Geologic description:

 The bedrock in the area of this occurrence is mainly the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, 

and radiolarian chert (Nokleberg and others, 1992). 

 This small mineral occurrence consists of a small shear zone along which hydrothermal 

alteration has produced epidote, chalcopyrite, and iron carbonate minerals. Weathering 

produces malachite- and azurite-coated float and encrustations. 

 This small mineral occurrence is one of many similar deposits in the Nikolai Greenstone. Most of these occurrences are part of an east-northeast trending fault zone several 

miles wide. 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

Hydrothermally altered shear zone. 

HE188 
Alaska Resource Data File 

Page 380 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Glavinovich, 1967; Smith, 1981; Kaufman, 1964; Nokleberg and others, 1992. 

Primary reference: Kaufmann, 1964. 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE188 
Alaska Resource Data File 

Page 381 

Site name(s): Unnamed (near Raft Creek) 

Site type: Occurrence 

ARDF no.: HE189 

Latitude: 63.07 Quadrangle: HE A-1 

Longitude: 147.27 

Location description and accuracy:

 This occurrence is at an elevation of about 3,900 feet, on of the first northwest tributary 

to Raft Creek. The map site is about 1.2 mile north of the Denali Highway, near the center of sec. 25, T. 21 S., R. 2 E., of the Fairbanks Meridian. This location is shown in 

Smith (1981). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, malachite, pyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks in the area of the occurrence are mostly the Nikolai Greenstone, a 

thick sequence of Middle or upper Triassic basalt and subordinate tuff, argillite, and chert 

(Nokleberg and others, 1992). At the occurence, a small diorite pluton intrudes the Nikolai Greenstone. The deposit consists of chalcopyrite, pyrite, and malachite erratically distributed in quartz veins 1/4 to 3 inches wide. The veins occur along a shear zone several 

feet wide that cuts the diorite pluton. 

Alteration:

 Local oxidation and copper minerals. 

Age of mineralization:

 Middle Triassic or younger. 

Deposit model:

Quartz vein in shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

HE189 
Alaska Resource Data File 

Page 382 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, T. E., 1981; Nokleberg and others, 1992. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE189 
Alaska Resource Data File 

Page 383 

Site name(s): Unnamed (south wall of valley of upper Windy Creek) 

Site type: Occurrence 

ARDF no.: HE190 

Latitude: 63.110 Quadrangle: HE A-1 

Longitude: 147.215 

Location description and accuracy:

 This occurrence is at an elevation of about 4,300 feet on the south wall of the valley of 

upper Windy Creek. It is in the NW1/4 of sec. 8, T. 21 S., R. 3 E., of the Fairbanks Meridian. The location is accurate to within 500 feet. This occurrence is site 32 in Smith 

(1981). 

Commodities: 

 Main: Copper 

 Other: 

Ore minerals: Azurite, chalcopyrite, malachite 

Gangue minerals: Epidote, iron carbonate 

Geologic description:

 The bedrock in the area of this occurrence is mainly the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, 

and radiolarian chert (Nokleberg and others, 1992). 

 This small mineral occurrence consists of a small shear zone along which hydrothermal 

alteration has produced epidote, chalcopyrite, and iron carbonate minerals. Weathering 

produces malachite- and azurite-coated float and encrustations. 

 This small mineral occurrence is one of many similar deposits in the Nikolai Greenstone. Most of these occurrences are part of an east-northeast trending fault zone several 

miles wide. 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

HE190 
Alaska Resource Data File 

Page 384 

Hydrothermally altered shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Glavinovich, 1967; Smith, 1981; Nokleberg and others, 1992. 

Primary reference: Glavinovich, 1967 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE190 
Alaska Resource Data File 

Page 385 

Site name(s): Denali Copper; Pass Creek; Caribou Dome 

Site type: Prospect 

ARDF no.: HE191 

Latitude: 63.139 Quadrangle: HE A-1 

Longitude: 147.141 

Location description and accuracy:

 The Denali Copper prospect is at an elevation of about 4,600 feet in the Clearwater 

Mountains, on the northwest side of the northwesternmost of the two passes between 

Windy Creek and the South Fork of Pass Creek. It is in sec. 34, T. 20 S., R. 3 E., of the 

Fairbanks Meridian. There is a short dirt airstrip located in this pass, and a dirt road connects the airstrip with a small camp at an elevation of about 4,200 feet. There is also trail 

access from the Denali Highway. The camp is located on the southwest bank of a gulch 

which traverses the mineralized area. The map site is that of the upper of two adit portals 

and is accurate to within several hundred feet. 

Commodities: 

 Main: Cu 

 Other: Ag, Zn 

Ore minerals: Azurite, bornite, chalcocite, chalcopyrite, malachite, native copper, pyrite, 

sphalerite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The Denali Copper prospect is near the upper contact of the Nikolai Greenstone, a thick 

sequence of Upper Triassic marine andesite and basalt, and subordinate clastic and carbonate units (Stevens, 1971, Wilson, and others, 1998). At the prospect, the strata dip at 

up to 80 degrees northwest and strike northeast. About a mile northwest of the prospect, 

the strata are cut by a strongly fractionated pluton dated by K-Ar methods at 130 to 143 

m.y. (Smith, 1981). 

 The deposit consists of delicately-bedded to massive chalcopyrite and pyrite beds in 

black argillaceous limestone and black calcareous argillite. The massive, dominantly 

chalcopyrite beds are up to 12 inches thick and assay up to 12% copper. Pyrite commonly 

occurs as framboids. Minor bornite, chalcocite, and native copper occur locally, as well as 

sparse sphalerite. Gossans overlie the sulfide bodies and contain malachite, azurite, chalcocite, and minor chalcopyrite. A unique gossan material consisting of a jet-black earthy 

residue with relic bedding overlies the highest-grade portions of the sulfide horizons (D. 

HE191 
Alaska Resource Data File 

Page 386 

L. Stevens, personal observation). Several major northeast-trending, strike-slip faults traverse the area. The most important occurs in the footwall just south of the main sulfide 

horizon; it is marked by a zone of fault gouge 20 to 50 feet in width. Movement along 

this fault has induced drag-folding of the steeply-dipping sulfide horizon, producing fold 

amplitudes of up to 50 feet. Northwest dipping thrust faults were encountered underground on the 4630-level adit. These faults offset the main horizon about 30 feet 

(Stevens, 1971). Regional mapping also shows a major southeast-dipping thrust fault that 

strikes northeast. 

 The main sulfide horizon, on which most of the exploration effort has been made, is up 

to 400 feet long and 30 feet wide; it extends at least 1,000 feet below the surface outcrop 

as confirmed by drilling. The sulfide horizons are characterized by 'pinching and swelling' along strike as well as down dip. As one horizon 'pinches', other horizons may 

'swell'. The deposit remains open at depth and along strike both to the northeast and 

southwest on at least four known horizons. Their steep dip makes additions to the reserves expensive. 

 The rocks in this region were regionally metamorphosed to prehnite-pumpellyite-quartz 

facies (Stevens, 1971), but the very fine-grained sulfide minerals in the deposit were not 

recrystallized, as shown by chalcopyrite grains as small as 1 micron. 

 This sulfide deposit is interpreted to have formed in a reducing or euxinic marine basin 

with abundant organic matter and sulfate reducing bacteria (Stevens, 1971). Sulfur isotope ratio analyses of the chalcopyrite and pyrite averaged -28.35 permil with a standard 

deviation range of only 1.01 permil (Stevens, 1971). These values strongly confirm the 

biogenic reduction of the seawater sulfate to produce the sulfide ion and suggest the possibility of a closed system. The copper was probably derived by weathering of the 

subaerial copper-rich volcanic rocks adjacent to the marine basin. 

Alteration:

 There is no hydrothermal alteration associated with the sulfide mineralization. 

Age of mineralization:

 This stratiform deposit is Late Triassic in age. 

Deposit model:

Basaltic Cu (Cox and Singer 1986; model 23) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

23 

Production Status: None 

Site Status: Active 

Workings/exploration:

 The deposit was discovered by M. A. Kaufman in 1963 while mapping for the State of 

Alaska Division of Mines and Minerals. It was subsequently staked by prospectors working for Leo Mark Anthony. From 1964 through 1968, exploration consisted of trenching, 

HE191 
Alaska Resource Data File 

Page 387 

geologic mapping, geochemical and geophysical surveys, and diamond core drilling. 

 In 1969, a 1,400-foot-long adit was driven from a portal at an elevation of 4,630 feet. 

This adit was driven to intersect and follow the drill-indicated trend of the widest known 

part of the deposit, which was informally called the main horizon. A crosscut was driven 

into the hanging wall approximately orthogonal to the main ore horizon to provide drill 

stations to intersect the down-dip extent of the main horizon. Slightly inclined percussion 

drill holes from this adit tested the adjacent areas out to about 100 feet. Surface diamond 

drilling tested the other four or five known ore horizons. 

 In 1970, an 1,800 foot long, minus-15-degree spiral decline was driven to provide drill 

stations for deep intercepts of the mineralized horizon, and to obtain bulk samples of the 

deposit. The main horizon has been tested by drilling as deep as 1,000 feet below outcrop. 

Drill testing of the other ore horizons has rarely been deeper than 300 feet. 

 Bulk samples for metallurgical testing were collected in both 1969 & 1970 as part of 

each underground exploration program. Three diamond core holes were drilled during 

the summer of 1999. 

Production notes:

 There has been no production. 

Reserves:

 The drill-indicated reserves of the main horizon were calculated to be 550,000 tons containing 5.84% copper, 0.3 ounces of silver per ton, and just a trace of gold (unpublished 

report by R. H. Seraphim, 1970). The other ore horizons have not been explored sufficiently to be included in reserve and resource calculations. The fine-grained nature of the 

sulfide minerals causes metallurgical complications which have largely been resolved by 

technological progress since the work done in the early 1970's. 

Additional comments:

 

References:

Kaufman, 1964 (PE 67-4); Stevens, 1971; Seraphim, 1975; MacKevett and Holloway, 

1977; Smith, 1981; Bundtzen and others, 1983; Wilson and others, 1998. 

Primary reference: Seraphim, 1975 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE191 
Alaska Resource Data File 

Page 388 

Site name(s): Unnamed (upper Windy Creek) 

Site type: Occurrence 

ARDF no.: HE192 

Latitude: 63.1210 Quadrangle: HE A-1 

Longitude: 147.1473 

Location description and accuracy:

 This occurrence is at an elevation of about 3,500 feet in the valley of a short, westflowing tributary to upper Windy Creek. The map site is in the SW1/4 of sec. 3, T. 21 S., 

R. 3 E., of the Fairbanks Meridian. The location is accurate to within 250 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Azurite, chalcopyrite, malachite 

Gangue minerals: Epidote, iron carbonate, quartz 

Geologic description:

 The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded 

volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 The deposit is in a hydrothermally altered shear zone in greenstone, and consists of 

quartz, epidote, chalcopyrite, and an iron carbonate mineral. Weathering produces malachite- and azurite-coated float and encrustations. 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

Hydrothermally altered shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

HE192 
Alaska Resource Data File 

Page 389 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Kaufman, 1964; Nokleberg and others, 1992. 

Primary reference: Kaufmann, 1964 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE192 
Alaska Resource Data File 

Page 390 

Site name(s): Unnamed (headwall cirque of Windy Creek) 

Site type: Occurrence 

ARDF no.: HE193 

Latitude: 63.112 Quadrangle: HE A-1 

Longitude: 147.109 

Location description and accuracy:

 This occurrence is at an alevation of about 4,900 feet in the headwall of a cirque at the 

head of Windy Creek. The map site is in the NE1/4 of sec.11, T. 21 S., R. 3 E., of the 

Fairbanks Meridian. The location is accurate to within 500 feet. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcocite 

Gangue minerals: Epidote 

Geologic description:

 The bedrock in the area of this occurrence is mainly the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, 

and radiolarian chert (Nokleberg and others, 1992). 

 This occurrence is a dome-shaped epidotized zone exposed above the bergschrund on 

the headwall of the cirque. The altered area is several hundred feet across. The occurrence is float on the moraine and consist of slabs of chalcocite as large as 15 inches by 10 

inches by 2 to 3 inches (D. L. Stevens, personal observation). 

Alteration:

 Propylitic alteration (epidote). 

Age of mineralization:

 Triassic or younger. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

HE193 
Alaska Resource Data File 

Page 391 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 Outcrop source of chalcocite has not been found. 

References:

Nokleberg and others, 1992. 

Primary reference: This record 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE193 
Alaska Resource Data File 

Page 392 

Site name(s): Valdez Creek area; Valdez Creek Mining Co. 

Site type: Mine 

ARDF no.: HE194 

Latitude: 63.175 Quadrangle: HE A-1 

Longitude: 147.473 

Location description and accuracy:

 This site represents an area of placer gold mining that extends from near the mouth of 

Valdez Creek, upstream at least as far as White Creek and Lucky Gulch. The map site is 

on lower Valdez Creek, about a half-mile downstream from the historic mining town of 

Denali. The site is in the NW1/4 of sec. 24, T. 20 S., R 1 E., of the Fairbanks Meridian. 

This location is accurate to within a quarter mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold, hessite, magnetite, pyrite 

Gangue minerals: Quartz 

Geologic description:

 Valdez Creek drains an area underlain mostly by pelitic metasedimentary rocks of probable Jurassic age (Smith, 1981). The sedimentary sequence was regionally metamorphosed during the Cretaceous to pumpellyite-prehnite grade on the southeast, through 

greenschist grade, to amphibolite grade on the northwest. The metamorphic sequence appears to be telescoped, possibly by northward-dipping thrust faults. An east-trending 

strike-slip fault zone south of, and approximately parallel to, Valdez Creek appears to be 

important to the distribution of the origin of the placer gold. The fault zone has controlled the emplacement of many small intrusives of intermediate composition, and of 

quartz vein swarms, some of which are auriferous. 

 The genesis and distribution of the placer gold deposits are linked to the complex glacial history of the drainage. Near the lower end of Valdez Creek, at least three superimposed, gold-bearing paleochannels were cut into bedrock (Reger and Bundtzen, 1990). 

Each paleochannel is at a specific elevation and gradient, and the younger paleochannels 

cut the older paleochannels, thereby redistributing the gold. Gold concentrations are 

highest in the lowest portions of the paleochannels. 

 The paleochannels become less incised upstream and eventually are not found. The pay 

streaks merge into a large volume of lower grade auriferous gravel from the upper limit of 

HE194 
Alaska Resource Data File 

Page 393 

mining by Valdez Creek Mining Company, apparently up into the White Creek drainage. 

 The fineness of the gold runs about 852 with only minor variations. The gold itself 

showed several different varieties. Most of the gold is 'oatmeal' sized and shaped; other 

varieties include well-polished and rounded grains, rough, angular, and quartz-rich grains, 

and rough, angular, and oxide-coated grains. 

Alteration:

 

Age of mineralization:

 Paleochannel A is probably Sangamon in age, the Tammany channel is probably midWisconsin in age, and Paleochannel B was probably deposited during the late Illinoian 

interstade (Reger and Bundtzen, 1990). The pay streaks and low-grade gravels in the 

White Creek drainage and Lucky Gulch are probably younger. 

Deposit model:

Placer Au-PGE (Cox and singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; medium 

Site Status: Active 

Workings/exploration:

 Lower Valdez Creek was mined by hand methods after discovery in 1903. The Tammany Channel was mined by underground methods for a distance of about 3,500 feet 

from the confluence of the channel with Valdez Creek. The Dry Creek cut was mined by 

hand methods and hydraulicked. The lower portion of the Tammany Channel was hydraulicked. Channels A and B were mined by large-scale, open-pit methods for a distance 

of several miles upstream after have been thoroughly explored by reverse-circulation 

drilling during the period 1984 through 1994. 

 White Creek has been mined by small-scale methods below the west slope of Gold Hill 

and by open-pit methods just above its confluence with Valdez Creek. Lucky Gulch and 

its downstream extension has been mined by hand and by small-scale mechanical methods. 

 Timberline Creek was mined for several years where the creek enters Valdez Creek valley. 

Production notes:

 Recorded production for the Valdez Creek drainage and its tributaries is about 650,000 

ounces. 

Reserves:

 Proven reserves are small because of a lack of detailed drilling. A very large quantity of 

gold remains but is not economic to mine at this time (1999). Detailed drilling in the 

HE194 
Alaska Resource Data File 

Page 394 

most promising areas could reveal as much as 100,000 ounces of proven reserves. 

Additional comments:

 

References:

Mendenhall, 1905; Brooks, 1908; Moffit, 1912; Moffit, 1914; Ross, 1933; Tuck, 1938; 

Smith, 1970; Smith, 1981; Wiltse, 1988; Wiltse and Reger, 1989; Reger and Bundtzen, 

1994. 

Primary reference: Reger and Bundtzen, 1994 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE194 
Alaska Resource Data File 

Page 395 

Site name(s): Dry Creek Cut 

Site type: Mine 

ARDF no.: HE195 

Latitude: 63.1738 Quadrangle: HE A-1 

Longitude: 147.4675 

Location description and accuracy:

 The Dry Creek Cut is a truncated stream channel that formerly was a southwest-flowing 

tributary to lower Valdez Creek. It is the downstream extension of the Tammany Channel 

that has been cut off by present day Valdez Creek. The map site is about 1,000 feet south 

of the old Denali post office, in the NW1/4 of sec. 24, T. 20 S., R. 1 E., of the Fairbanks 

Meridian. This location is accurate to within 250 feet. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: Quartz 

Geologic description:

 The geology of the general area of the Dry Creek Cut is described in records HE194 and 

HE197. The Dry Creek Cut is the downstream portion of the Tammany paleochannel 

truncated by the cross-cutting younger Valdez Creek. The base of the paleochannel was 

higher in elevation than Valdez Creek. The cut was mined from its lower extent upstream 

as far as was possible without destroying the access road to Denali. The Tammany-Dry 

Creek paleochannel was filled with large boulders at its base and contained a very high 

grade placer. The descriptions of the Valdez Creek area (HE194 and HE197) that apply 

to the Tammany or A paleochannel also apply to the Dry Creek Cut. 

Alteration:

 

Age of mineralization:

 The same as Tammany paleochannel. Tammany channel is probably mid-Wisconsin in 

age (Reger and Bundtzen, 1990). 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

HE195 
Alaska Resource Data File 

Page 396 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; medium 

Site Status: Inactive 

Workings/exploration:

 The workings in this cut are impressive. In places, overburden approached 100 feet in 

depth. Large boulders are hand stacked adjacent to the pay channels that were mined. A 

telegraph pole(?) and wire are still present. 

 The cut appears to be mined out, except for the pay gravels that remain beneath the 

road. 

Production notes:

 The total production from the Dry Creek Cut is not known. 

Reserves:

 No reserves remain. 

Additional comments:

 

References:

Ross, 1933; Tuck, 1938; Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE195 
Alaska Resource Data File 

Page 397 

Site name(s): Denali Bench 

Site type: Prospect 

ARDF no.: HE196 

Latitude: 63.1762 Quadrangle: HE A-1 

Longitude: 147.4587 

Location description and accuracy:

 The Denali Bench gold placer is on the south bank of lower Valdez Creek, about 0.3 

mile east-southeast of the town of Denali. The map site is in the SE1/4 of sec. 13, T. 20 

S., R. 1 E., of the Fairbanks Meridian. This location is accurate to within 200 feet. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The Denali Bench gravels, as defined by Smith (1971), are on the south side of Valdez 

Creek upstream from the Dry Creek Cut (HE195). The gravels occur both on the bedrock 

bench and in a paleochannel. The paleochannel contains large, rounded boulders; it 

grades upwards into well-bedded fluvial gravels. All lithologies in the gravels appear to 

have been derived from within the Valdez Creek valley. 

Alteration:

 

Age of mineralization:

 Quaternary. 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

HE196 
Alaska Resource Data File 

Page 398 

Site Status: Inactive 

Workings/exploration:

 Small-scale mechanical and hydraulic operations have tested the tenor of the exposed 

gravels. Some drilling has been completed on portions of the bench gravels. 

Production notes:

 

Reserves:

 There is a large resource of sub-economic gold-bearing gravels. 

Additional comments:

 

References:

Smith, 1971; Smith, 1981. 

Primary reference: Smith, 1971 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE196 
Alaska Resource Data File 

Page 399 

Site name(s): Valdez Creek; Valdez Creek Mining Co. 

Site type: Mines 

ARDF no.: HE197 

Latitude: 63.18 Quadrangle: HE A-1 

Longitude: 147.46 

Location description and accuracy:

 This site represents an area of placer gold mining on lower Valdez Creek and on adjacent parts of some of its tributaries. The map site is on the northbank of lower Valdez 

Creek, at the northeast end of the historic mining town of Denali. The site is in the SE1/4 

of sec. 13, T. 20 S., R 1 E., of the Fairbanks Meridian. This location is accurate to within 

a quarter mile. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold, hessite, magnetite, pyrite 

Gangue minerals: Quartz 

Geologic description:

 The following description inpart duplicates, and in part supplements, the information in 

record HE194. 

 Valdez Creek drains an area underlain by pelitic metasedimentary rocks of probable Jurassic age, and several small intrusions of intermediate composition (Smith, 1981). The 

sedimentary sequence was regionally metamorphosed during the Cretaceous pumpellyiteprehnite grade on the southeast, through greenschist grade, to amphibolite grade on the 

northwest. The metamorphic sequence appears to be telescoped, possibly by northwarddipping thrust faults. An east-trending strike-slip fault zone south of, and sub-parallel to, 

Valdez Creek forms a distinct topographic break from upper Timberline Creek, across the 

upper end of Rusty and White creeks, and on eastward along the east-west portion of the 

Pass Creek drainage. This zone is important to the distribution of the origin of the placer 

gold because it has controlled the emplacement of several of the intermediate composition 

intrusions as well of as quartz vein swarms, some of which are auriferous. None of the 

northern tributaries of Valdez Creek are significant sources of placer gold. 

 The genesis and distribution of the placer gold deposits are also linked to the complex 

glacial history of the drainage. Near the lower end of the valley, at least three superimposed, gold-bearing paleochannels were cut into bedrock (Reger and Bundtzen, 1990), 

HE197 
Alaska Resource Data File 

Page 400 

probably during valley deglaciation. From youngest to oldest, the paleochannels are designated Tammany paleochannel, A paleochannel, and B paleochannel. Portions of other 

paleochannels were also identified by drilling. Each paleochannel is at a specific elevation and gradient, and the younger paleochannels cut the older paleochannels, thereby redistributing and reconcentrating the gold. Gold concentrations are highest in the lowest 

portions of the paleochannels. The gravels and cobbles in these channels indicate that the 

channels were a very high energy depositional environment. The paleochannels served as 

natural giant sluiceboxes to concentrate the gold. The cracks and crevices in the bedrock 

in the bottom of the paleochannel also collected gold to depths of at least five feet below 

the bedrock surface (D.L. Stevens, personal observation). 

 The paleochannels become less incised upstream and eventually are not found. The pay 

streaks merge into a large volume of lower grade auriferous gravel from the upper limit of 

mining by Valdez Creek Mining Company, apparently up into the White Creek drainage, 

and in Valdez Creek upstream from White Creek. These auriferous gravels are fluvial 

and glacial in origin. 

 The fineness of the gold runs about 852 with only minor variations. The gold itself 

showed several different varieties. Most of the gold is 'oatmeal' sized and shaped; other 

varieties include well-polished and rounded grains, rough, angular, and quartz-rich grains, 

and rough, angular, and oxide-coated grains. 

Alteration:

 

Age of mineralization:

 Paleochannel A is probably Sangamon in age, the Tammany channel is probably midWisconsin in age, and Paleochannel B was probably deposited during the late Illinoian 

interstade (Reger and Bundtzen, 1990). The pay streaks and low-grade gravels in the 

White Creek drainage and Lucky Gulch are probably younger. 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; large 

Site Status: Active 

Workings/exploration:

 Lower Valdez Creek was mined by hand methods after discovery in 1903. The Tammany Channel was mined by underground methods for a distance of about 3,500 feet 

from the confluence of the channel with Valdez Creek. The lower portion of the Tammany Channel was hydraulicked. The Dry Creek Cut was mined by hand methods and 

then by hydraulick methods. 

 From 1984 through 1994, Channels A and B were mined by large-scale, open-pit methods for a distance of several miles upstream after have been thoroughly explored by reHE197 
Alaska Resource Data File 

Page 401 

verse-circulation drilling. During this period, this mine was the largest placer mine in 

North America. The highest single year's production was nearly 102,000 ounces of gold. 

Production notes:

 Recorded production for all of Valdez Creek exceeds 600,000 ounces. 

Reserves:

 The large volume of low-grade material upstream from the upper limit of mining by 

Valdez Creek Mining Company has been extensively drilled, but is not economic to mine 

at this time (1999). No definitive efforts have been made to classify this large resource. 

Additional comments:

 

References:

Mendenhall, 1905; Brooks, 1908; Moffit, 1909; Moffit, 1912; Moffit, 1914; Ross, 1933; 

Tuck, 1938; Smith, 1971; Smith, 1981; Wiltse, 1988; Wiltse and Reger, 1989; Reger and 

Bundtzen, 1994. 

Primary reference: Reger and Bundtzen, 1994 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE197 
Alaska Resource Data File 

Page 402 

Site name(s): Timberline Creek 

Site type: Mine 

ARDF no.: HE198 

Latitude: 63.18 Quadrangle: HE A-1 

Longitude: 147.43 

Location description and accuracy:

 This placer mine is on Timberline Creek, a west-flowing tributary to Valdez Creek. 

The center of placer mining on Timberline Creek is about 1.2 miles east northeast of Denali. The map site is in the E1/2 of sec. 18, T. 20 S., R. 2 E., of the Fairbanks Meridian. 

The location is shown as Site 5 in Smith, 1981. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Timberline Creek drains an area underlain by phyllite and argillite intruded by small, 

Upper Cretaceous diorite stocks. A small amount of gold has been recovered from this 

placer deposit. The best values occur in a channel in the prograde delta where Timberline 

Creek exits its valley just above Valdez Creek. The placer gold was derived from the 

many small lode gold occurrences in the drainage basin (HE199, HE200, HE201, HE202, 

and HE203). 

Alteration:

 

Age of mineralization:

 Holocene. The gold placer was probably formed after the last phase of glaciation. 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

HE198 
Alaska Resource Data File 

Page 403 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Surface placer mine. 

Production notes:

 Total production is not known. 

Reserves:

 

Additional comments:

 

References:

Moffit, 1912; Tuck, 1938; Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE198 
Alaska Resource Data File 

Page 404 

Site name(s): Unnamed (west side of lower Sunny Gulch) 

Site type: Occurrence 

ARDF no.: HE199 

Latitude: 63.178 Quadrangle: HE A-1 

Longitude: 147.408 

Location description and accuracy:

 This occurrence is at an elevation of about 4,000 feet, on an isolated knob at the north 

end of the ridge on the west side of Sunny Gulch, a tributary of Timberline Creek. The 

map site is in the SW1/4 of sec. 17. T. 21 S., R. 2 E., of the Fairbanks Meridian. The site 

is marked on Plate I of Smith (1981). The location is accurate to within 500 feet. 

Commodities: 

 Main: Au 

 Other: Ag 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The occurrence is in a small, Cretaceous intermediate intrusion. No other information 

about the deposit has been made public. 

Alteration:

 

Age of mineralization:

 Cretaceous or younger. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

HE199 
Alaska Resource Data File 

Page 405 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE199 
Alaska Resource Data File 

Page 406 

Site name(s): Unnamed (southeast of junction of Snowy Gulch and Timberline Creek) 

Site type: Occurrence 

ARDF no.: HE200 

Latitude: 63.177 Quadrangle: HE A-1 

Longitude: 147.393 

Location description and accuracy:

 This occurrence is at an elevation of about 4,300 feet about 0.5 mile southeast of the 

junction of Sunny Gulch and Timberline Creek. It is in the Se1/4 of sec. 17, T. 20 S., R. 2 

E., of the Fairbanks Meridian. It is shown as Site 11 on Plate I of Smith (1981). This location is accurate to within 500 feet. 

Commodities: 

 Main: Au 

 Other: Ag 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 This occurrence is in a Cretaceous (?) intermediate intrusion. No other information 

about this deposit has been made public. 

Alteration:

 

Age of mineralization:

 Cretaceous or younger. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

HE200 
Alaska Resource Data File 

Page 407 

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE200 
Alaska Resource Data File 

Page 408 

Site name(s): Campbell and Boedeker 

Site type: Prospect 

ARDF no.: HE201 

Latitude: 63.1760 Quadrangle: HE A-1 

Longitude: 147.3833 

Location description and accuracy:

 This prospect is at an elevation of about 3,900 feet in a small valley between Sunny 

Gulch and upper Timberline Creek. It is about 2.5 miles east of the old town of Denali, in 

SW1/4 section 16, T. 20 S., R. 2 E., Fairbanks Meridian. The location is accurate to 

within 250 feet. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold, pyrite 

Gangue minerals: Quartz 

Geologic description:

 The Campbell and Boedecker prospect explores one of several mineral deposits in a belt 

south of Valdez Creek. The Valdez Creek area is underlain by pre-Upper Triassic pelitic 

clastic rocks, minor tuff, limestone lenses, and conglomerate. The rocks apparently vary 

abruptly in regional metamorphosed grade, from prehnite-pumpellyite through greenschist 

and amphibolite, to granulite. These rocks are intruded by Upper Jurassic alkali gabbro 

and by dioritic intrusions of Late Cretaceous and Early Tertiary age (Smith, 1981). 

 The bedding and foliation of the strata strike about N 75 E and dip steeply northwest. 

Strike-slip faults having a similar orientation are also present, particularly on the south 

side of Valdez Creek (Smith, 1981). On the north side of the creek, a northwest-dipping 

thrust fault in part explains an apparent 'telescoping' of the metamorphic rocks. 

 The deposit consists of two-foot-thick auriferous quartz vein that cuts sheared and locally pyritized diorite. The vein contains up to 50% pyrite; it strikes N 85 E and dips 68 

N. A sample of sulfide concentrates assayed 1.9 ounces of gold per ton and 1.5 ounces of 

silver per ton. A sample of the sheared and pyritized diorite assayed 0.18 ounces of gold 

per ton (Tuck, 1938). 

Alteration:

 Pyritization. 

HE201 
Alaska Resource Data File 

Page 409 

Age of mineralization:

 Late Cretaceous or younger. 

Deposit model:

High-sulfide auriferous quartz vein. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 A 20-foot tunnel did not penetrate weathered zone but did give good exposure of vein 

and host rock. A sample of sulfide concentrates assayed 1.9 ounces of gold per ton and 

1.5 ounces of silver per ton. A sample of the sheared and pyritized diorite assayed 0.18 

ounces of gold per ton (Tuck, 1938). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Tuck, 1938; Smith, 1981. 

Primary reference: Tuck, 1938 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE201 
Alaska Resource Data File 

Page 410 

Site name(s): Unnamed (ridge west of upper Timberline Creek) 

Site type: Occurrence 

ARDF no.: HE202 

Latitude: 63.174 Quadrangle: HE A-1 

Longitude: 147.377 

Location description and accuracy:

 This occurrence is at an elevation of about 4,200 feet on a small knob on the north end 

of the ridge west of upper Timberline Creek. It is in the NW1/4 of sec. 21, T. 20 S., R. 2 

E., of the Fairbanks Meridian. The location is accurate to within 500 feet. 

Commodities: 

 Main: Au 

 Other: Ag 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The bedrock at this site is mapped as argillite by Smith (1981), who shows several eastwest faults across the site area. No other information about this occurrence has been made 

public. 

Alteration:

 

Age of mineralization:

 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

HE202 
Alaska Resource Data File 

Page 411 

 

Reserves:

 

Additional comments:

 

References:

Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE202 
Alaska Resource Data File 

Page 412 

Site name(s): Timberline 

Site type: Prospects 

ARDF no.: HE203 

Latitude: 63.188 Quadrangle: HE A-1 

Longitude: 147.401 

Location description and accuracy:

 The site represents several prospects at an elevation of about 3,950 feet on the west 

slope of the ridge between Timberline Creek and Valdez Creek. The map site is in the 

N1/2 of sec. 17, T. 20 S., R. 2 E., of the Fairbanks Meridian. The location is accurate to 

within 1,000 feet. These prospects are shown as Sites 6 through 10 on Plate I of Smith, 

1981. 

Commodities: 

 Main: Ag, Au, Cu 

 Other: 

Ore minerals: arsenopyrite, cHALCOPYRITE, gOLD, pyrite, pYRrHOTITE 

Gangue minerals: CALCITE, qUARTZ 

Geologic description:

 The country rock in the area of this site is spotted phyllite, cut by CHLORITIZED DIORITE of probable Cretaceous age. The deposit consists of five veins in shear zones in altered diorite. The largest vein, the Big Caribou, has been traced for 1,000 feet; it is up to 

8 feet wide, and contains kidneys and lenses of quartz, arsenopyrite, pyrite, pyrrhotite, and 

chalcopyrite. Other veins include the Big Water Hole, Freda G., Valdez Creek 6, and Little Caribou. Veins comprise quartz bands up to 2 feet wide. Some of the sulfides also are 

disseminated in the diorite. The veins appear to be localized in a conjugate fracture system associated with east-trending fault zones. Samples of the veins contain up to 0.33 

ounce of gold per ton (Smith, 1981). 

Alteration:

 The quartz veins are associated with chloritization of the adjacent diorite. 

Age of mineralization:

 Probably Cretaceous or younger. 

Deposit model:

HE203 
Alaska Resource Data File 

Page 413 

Polymetallic veins (Cox and Singer, 1986, model 22c) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

22c 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Surface exploration consists of trenches and pits along the traces of the veins. A short 

adit was driven which encountered the down-dip extension of the Big Caribou and Little 

Caribou vein systems. Samples of the veins contain up to 0.33 ounce of gold per ton 

(Smith, 1981). 

Production notes:

 A small mill was installed in about 1934; it consisted of a jaw crusher, ball mill, classifier, and amalgamating plates. Production was very small. 

Reserves:

 

Additional comments:

 This was one of the very few lode gold producers in the Valdez Creek drainage. 

References:

Ross, 1933; Smith, 1936 (B 864); Smith, 1936 (B 868); Smith, 1937; Tuck, 1938; Kaufman, 1964; Smith, 1971; Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE203 
Alaska Resource Data File 

Page 414 

Site name(s): Unnamed (southwest slope of Rusty Hill) 

Site type: Occurrence 

ARDF no.: HE204 

Latitude: 63.2049 Quadrangle: HE A-1 

Longitude: 147.4302 

Location description and accuracy:

 This occurrence is at an elevation of about 4,100 feet on the southwest slope of Rusty 

Hill, about 2.25 miles north northeast of Denali. The map site is just inside the south 

boundary of sec. 6, T. 20 S., R. 1 E., of the Fairbanks Meridian. This location is accurate 

to about 250 feet. 

Commodities: 

 Main: Cu 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, gold, pyrite, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 The country rock at this occurrence is spotted phyllite (Smith, 1981). The deposit consists of hydrothermally altered pyritized phyllite(?), cut along fractures by numerous 

quartz-sulfide veins as much as a foot thick (Ross, 1933). The sulfide minerals are pyrite, 

pyrrhotite, and chalcopyrite that carry trace amounts of gold and silver. The prospect has 

been known since the mid-1930's, and displays a distinct color anomaly. 

Alteration:

 Hydrothermal alteration has been described as pyritization and quartz veining. 

Age of mineralization:

 Hornblende has been K/Ar-dated by Smith (1981) at 64.1 Ma. 

Deposit model:

 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

 

Production Status: None 

HE204 
Alaska Resource Data File 

Page 415 

Site Status: Inactive 

Workings/exploration:

 Surface sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Ross, 1933; Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE204 
Alaska Resource Data File 

Page 416 

Site name(s): Lower White Creek 

Site type: Mines 

ARDF no.: HE205 

Latitude: 63.20 Quadrangle: HE A-1 

Longitude: 147.32 

Location description and accuracy:

 This site represents an area of gold placer mines on lower White Creek. The map site is 

at the junction of White and Rusty creeks, at the west-central edge of sec. 11, T. 20 S., R. 

2 E., of the Fairbanks Meridian. With its tributaries, Rusty, Little Rusty, and Big Rusty 

creeks, White Creek has a total drainage basin of more than ten square miles. 

Commodities: 

 Main: Ag, Au 

 Other: Cu, Pb 

Ore minerals: ArSENOPYRITE, GALENA, gold, HESSITE, MAGNETITE, NATIVE 

Copper, ORPIMENT, pyrite, PYRRHOTITE, REALGAR 

Gangue minerals: Quartz 

Geologic description:

 White Creek drains the west slope of Gold Hill, which probably is the source of much 

of the placer gold. The productive part of White Creek is its lower end, which consists of 

a prograde delta containing a large volume of low-grade auriferous gravels. Intercalated 

with the gold-bearing fluvial gravels are several extensive fine-grained, black, delicately 

cross-bedded, barren lake sediment deposits up to twenty feet thick. 

 The best paystreaks appear to be high-energy channels cut through the low-grade gravels and lake sediments. These channels contain boulders up to four feet in diameter but 

are not incised into bedrock to any appreciable extent. The lower end of these channels 

appears to spread out over older gravels to form blanket deposits that contain elevated 

gold values. These gold-bearing gravels merge with lower grade Valdez Creek gravels at 

the lower end of White Creek. The White Creek gravels probably were the source for 

most of the gold reconcentrated in the Valdez Creek channel deposits farther downstream 

(D.L. Stevens, personal observations). 

 Other auriferous ground is on the lower slopes of Gold Hill just above White Creek. 

Systematic ground sluicing downslope from a water ditch revealed auriferous gravels and 

rock derived from up slope. The lode source of this gold has not been found. 

HE205 
Alaska Resource Data File 

Page 417 

Alteration:

 

Age of mineralization:

 Stratigraphic relations suggest that the pay streak on White Creek is younger than the 

paleochannels on lower Valdez Creek. 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

Site Status: Active 

Workings/exploration:

 Lower White Creek was first drilled in 1987, and has been mined each summer commencing about 1990. 

 The lower slope of Gold Hill was mined during the 1930's, and there has been smallscale mining more recently. 

Production notes:

 

Reserves:

 Confidential data. 

Additional comments:

 

References:

Mendenhall, 1905; Brooks, 1908; Moffit, 1909; Moffit, 1912; Moffit, 1914; Ross, 1933; 

Tuck, 1938; Smith, 1971; Smith, 1981; Wiltse, 1988; Wiltse and Reger, 1989; Reger and 

Bundtzen, 1994. 

Primary reference: Reger and Bundtzen, 1994 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE205 
Alaska Resource Data File 

Page 418 

Site name(s): Hot Air Bench; Last Chance Creek 

Site type: Prospect; Mine 

ARDF no.: HE206 

Latitude: 63.2029 Quadrangle: HE A-1 

Longitude: 147.3030 

Location description and accuracy:

 The Hot Air Bench gold placer prospect is on the south side of Valdez Creek on the 

prominent terrace between White Creek and Lucky Gulch. This site also includes a 

placer mine in a small gulch locally called Last Chance Creek, which is a tributary of Valdez Creek. The map site is just inside the north-central border of sec. 11, T. 20 S., R. 2 

E., of the Fairbanks Meridian. This location is accurate to within 100 feet. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 The Hot Air Bench consists mostly of glacial-moraine gravels and of fluvial channels 

that cross the bench. All of the gravels are auriferous but none is rich enough to mine at 

this time (1999). A limited cross section is exposed in Last Chance Creek, along the 

lower portion of the bench, where Valdez Creek fluvial gravels are interbedded with apparently glacial-moraine gravels. In drill holes along the lower portion of the bench there 

was a large amount of ground water (D. L. Stevens, personal observations). 

Alteration:

 

Age of mineralization:

 Quaternary. Most of the bench probably consists of moraines from the last phase of 

valley glaciation. 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE206 
Alaska Resource Data File 

Page 419 

39a 

Production Status: Yes; small 

Site Status: Active 

Workings/exploration:

 In 1986, a reconnaissance-scale drilling program tested these gravels. The Last Chance 

Creek gulch has been mined sporadically since the early days in the district. The most recent mining was in the mid-1980's. The gold is bright and shiny and some nuggets were 

found (D.L. Stevens, personal observations). 

Production notes:

 There has been very small production. 

Reserves:

 

Additional comments:

 

References:

This record. 

Primary reference: This record 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE206 
Alaska Resource Data File 

Page 420 

Site name(s): Lucky Gulch 

Site type: Mine 

ARDF no.: HE207 

Latitude: 63.199 Quadrangle: HE A-1 

Longitude: 147.274 

Location description and accuracy:

 This placer gold mine is in Lucky Gulch, a north-flowing tributary to Valdez Creek between White Creek and Roosevelt Creek. The map site is in sec. 12, R. 2 E., T 20 S., of 

the Fairbanks Meridian. This creek is located about 9 miles up Valdez Creek from Denali. The location is accurate to within 500 feet. The mine is shown as site 17 in Smith 

(1981). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Lucky Gulch drains an area of variably metamorphosed, pre-Upper Triassic, clastic and 

carbonate strata that are intruded by Upper Jurassic gabbro and by diorite plutons of Late 

Cretaceous and Early Tertiary age (Smith, 1981). 

 The pay gravels of Lucky Gulch consist mainly of poorly sorted, angular, slate fragments. Lucky Gulch contains the largest gold nuggets found in the district; nuggets up to 

52 ounces have been recovered. The auriferous creek gravels are up to 25 feet deep in a 

very steep, narrow drainage. Most of the gold was concentrated on bedrock and most of 

present channel has been worked out. A large alluvial fan has been formed where Lucky 

Gulch exits its narrow valley enters Valdez Creek. This alluvial fan may contain significant quantities of finer gold, but probably at a lower overall grade than in the gulch (D.L. 

Stevens, personal observation). The source of the gold may be auriferous qurtz veins at 

the Lucky Top prospect (HE210). 

Alteration:

 

Age of mineralization:

 Probably formed in Holocene time. 

HE207 
Alaska Resource Data File 

Page 421 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; medium 

Site Status: Active 

Workings/exploration:

 Lucky Gulch has been mined from the upper extremity of paying gravels in the headwaters down to the upper portion of the alluvial fan by both underground and surface placer 

mining methods. The alluvial fan has been sporadically mined in several locations. 

Production notes:

 Total recorded production through 1925 was about 3,000 ounces. Since that date, cumulative production is probably about equal to that amount. (D. L. Stevens, personal observation, 1999). 

Reserves:

 

Additional comments:

 Lucky Gulch has produced the coarsest placer gold in the district. 

References:

Moffit, 1912; Ross, 1933; Tuck, 1938; Smith, 1981. 

Primary reference: Moffit, 1912 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE207 
Alaska Resource Data File 

Page 422 

Site name(s): Yellowhorn 

Site type: Prospect 

ARDF no.: HE208 

Latitude: 63.197 Quadrangle: HE A-1 

Longitude: 147.288 

Location description and accuracy:

 This prospect is at an elevation of about 3,900 feet on the north slope of Gold Hill, between Lucky Gulch and White Creek. The site is in sec. 12, T. 20 S., R. 2 E., of the Fairbanks Meridian. This location is accurate to within 1,000 feet. 

Commodities: 

 Main: Au 

 Other: Ag, Pb 

Ore minerals: Galena, gold, Pyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rock at this prospect is miceous schist of unknown age. Foliation strikes 

58 SE and dips 18 N. The deposit is a 4-foot-wide shear zone consisting, from the top 

down, of a one-foot-wide quartz vein, with three feet of schist cut by small quartz seams, 

and quartz stringers. Most of the quartz is sugary and contains vugs lined with terminated 

crystals. Good values of gold were panned from the weathered material, but there was 

some indication that in the unweathered material, the gold was in the sulfides, rather than 

free-milling (Tuck, 1936). 

Alteration:

 There is a color anomaly associated with the prospect due to weathering of pyrite. 

Age of mineralization:

 

Deposit model:

Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a 

HE208 
Alaska Resource Data File 

Page 423 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface trenches and cuts, one short tunnel and one 60-foot tunnel that missed the lode. 

Production notes:

 

Reserves:

 

Additional comments:

 Shear zones in this area having shallow northward dips are part of a thrust zone best exposed underground at the Denali Copper prospect (HE191). 

References:

Moffit, 1912; Tuck, 1938; Smith, 1981. 

Primary reference: Tuck, 1938 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE208 
Alaska Resource Data File 

Page 424 

Site name(s): Accident 

Site type: Occurrence 

ARDF no.: HE209 

Latitude: 63.1901 Quadrangle: HE A-1 

Longitude: 147.2776 

Location description and accuracy:

 This occurrence is at an elevation of about 4,800 feet, just west of the summit of Gold 

Hill between Lucky Gulch and White Creek. The map site is on the boundary of secs. 7 

and 18, T. 20 S., R. 3 E., of the Fairbanks Meridian. The location is shown as site 18a in 

Smith (1981). This position is accurate to within 200 feet. 

Commodities: 

 Main: Au 

 Other: Pb, Zn 

Ore minerals: Galena, gold, pyrite, sphalerite 

Gangue minerals: Quartz, sericite 

Geologic description:

 The Accident prospect explores one of several mineral deposits in a belt south of Valdez Creek. The Valdez Creek area is underlain by pre-Upper Triassic pelitic clastic rocks, 

minor tuff, limestone lenses, and conglomerate. The rocks apparently vary abruptly in regional metamorphosed grade, from prehnite-pumpellyite through greenschist and amphibolite, to granulite. These rocks are intruded by Upper Jurassic alkali gabbro and by dioritic intrusions of Late Cretaceous and Early Tertiary age (Smith, 1981). 

 The bedding and foliation of the strata strike about N 75 E and dip steeply northwest. 

Strike-slip faults having a similar orientation are also present, particularly on the south 

side of Valdez Creek (Smith, 1981). On the north side of the creek, a northwest-dipping 

thrust fault in part explains an apparent 'telescoping' of the metamorphic rocks. 

 The Accident occurrence consists of a quartz vein on the same lode system(?) as the 

Yellowhorn prospect (HE208). Decomposed slates are intruded by siliceous, fine-grained 

leucocratic rock containing abundant pyrite. The gold vein contains galena and 

sphalerite. 

Alteration:

 Quartz, sericite, and pyrite alteration of host phyllite and small silicic dike. 

HE209 
Alaska Resource Data File 

Page 425 

Age of mineralization:

 

Deposit model:

Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface sampling and trenching. 

Production notes:

 

Reserves:

 

Additional comments:

 A rocker set up in a gulch 300 to 400 feet above Accident lode was reported to have obtained good gold values from stream gravel. 

References:

Moffit, 1912; Ross, 1933; Smith, 1981; Tuck, 1938. 

Primary reference: Ross, 1933 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE209 
Alaska Resource Data File 

Page 426 

Site name(s): Lucky Top 

Site type: Prospect 

ARDF no.: HE210 

Latitude: 63.189 Quadrangle: HE A-1 

Longitude: 147.248 

Location description and accuracy:

 This prospect is at an elevation of 500 feet about 0.2 mile northwest of the top of Lucky 

Hill. It is on the boundary of secs. 7 and 18, T. 20 S., R. 3 E., of the Fairbanks Meridian. 

The location is accurate to within 500 feet. This site is loc. 17 in Smith (1981) and loc. 

52 in Clark and Cobb (1972). 

Commodities: 

 Main: Au 

 Other: Pb 

Ore minerals: Arsenopyrite, galena, gold 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at the Lucky Top prospect is pelitic phyllite containing biotite porphyroblasts, and minor garnet and actinolitic hornblende. The hornblende at a nearby locality has been dated by K-Ar methods at 64.1 Ma (Smith, 1981). 

 The deposit consists of an auriferous, banded, comb-quartz vein in well-defined slate 

walls. It is accompanied by gouge and slickenslides and contains arsenopyrite and galena. Some small specimens of the quartz run very high in gold (Tuck, 1938). The placer 

on Lucky Gulch (HE207), located directly downslope from this prospect, is well known 

for its nuggets and coarse placer gold. 

Alteration:

 

Age of mineralization:

 The vein cuts phyllite containing 64.1 Ma actinolitic hornblende. 

Deposit model:

Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE210 
Alaska Resource Data File 

Page 427 

36a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 There has been surface sampling and test pitting with occasional spectacular gold values. An adit was started in 1936 to test down-dip extension below outcrop. 

Production notes:

 

Reserves:

 

Additional comments:

 This vein is the probable source area for the placer gold and large nuggets in Lucky 

Gulch (HE207) below it. 

References:

Tuck, 1938; Smith, 1981; Wiltse, 1988; Wiltse and Reger, 1989. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE210 
Alaska Resource Data File 

Page 428 

Site name(s): Lucky Hill-TMC; Rainbow Hill 

Site type: Prospect 

ARDF no.: HE211 

Latitude: 63.179 Quadrangle: HE A-1 

Longitude: 147.246 

Location description and accuracy:

 This prospect is near the south end of Lucky Hill at an elevation of about 4,500 feet. It 

is in sec. 18, T. 20 S., R. 3 E., of the Fairbanks Meridian. This location is accurate to 

within 500 feet. 

Commodities: 

 Main: Ag, Au 

 Other: Pb, Zn 

Ore minerals: Arsenopyrite, galena, gold, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Ankeraite, quartz, sericite 

Geologic description:

 The Lucky Hill-TMC prospect explores one of several mineral deposits in a belt south 

of Valdez Creek. The Valdez Creek area is underlain by pre-Upper Triassic pelitic clastic 

rocks, minor tuff, limestone lenses, and conglomerate. The rocks apparently vary 

abruptly in regional metamorphosed grade, from prehnite-pumpellyite through greenschist 

and amphibolite, to granulite. These rocks are intruded by Upper Jurassic alkali gabbro 

and by dioritic intrusions of Late Cretaceous and Early Tertiary age (Smith, 1981). 

 The bedding and foliation of the strata strike about N 75 E and dip steeply northwest. 

Strike-slip faults having a similar orientation are also present, particularly on the south 

side of Valdez Creek (Smith, 1981). On the north side of the creek, a northwest-dipping 

thrust fault in part explains an apparent 'telescoping' of the metamorphic rocks. 

 The Lucky Hill-TMC deposit apparently is in semischist and consists of free gold and 

minor pyrite, pyrrhotite, arsenopyrite, galena, and sphalerite in sheeted quartz veins that 

strike east-west and dip steeply to the northwest. A distinctive, yellowish, ankeritic carbonate accompanies the gold-quartz veins. Ar-Ar ages on primary micas from a dioritic 

pluton give an emplacement age of 90-100 Ma. The age of sericite in the veins is 57-63 

Ma. 

 Exploration trenching and drilling show at least five stacked gold-bearing, sheeted 

zones over a vertical range of 600 feet. Drill-inferred reserves have been established over 

a strike length of 1,000 feet on the western extension of the TMC zone. Induced polarizaHE211 
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Page 429 

tion surveys have extended the zone along strike for over 5,000 feet (unpublished report 

by Fairbanks Exploration Inc.). 

Alteration:

 The mineralization is associated with sericitic alteration and ankeritic carbonate. 

Age of mineralization:

 Early Tertiary, based upon Ar-Ar dating of sericite. 

Deposit model:

Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a 

Production Status: None 

Site Status: Active? 

Workings/exploration:

 There are numerous backhoe and dozer trenches on the prospect. Drilling has been 

done on the best portions of the prospect. Induced polarization surveys have been conducted along strike. 

Production notes:

 

Reserves:

 Drill-inferred reserves are 261,998 tons, averaging 0.151 ounce gold per ton 

(unpublished report by Fairbanks Exploration Inc.). 

Additional comments:

 There is excellent access by vehicle from the Denali Highway. From the old townsite 

of Denali, the road along the north side of lower Valdez Creek reclaimed area extends 

past Lucky Gulch. From Lucky Gulch a narrow trail along the east side of the Gulch can 

be followed southward up the hill to the prospect area. 

References:

Smith, 1981; Wiltse, 1988; Wiltse and Reger, 1989. 

Primary reference: Freeman, et al.,1990 (unpublished report by Fairbanks Exploration Inc.) 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE211 
Alaska Resource Data File 

Page 430 

Site name(s): Black Creek; Wagner and associates; Wagner lode 

Site type: Prospect 

ARDF no.: HE212 

Latitude: 63.18 Quadrangle: HE A-1 

Longitude: 147.23 

Location description and accuracy:

 The map site of this prospect is at an elevation of about 4,100 feet on the west side of 

Eldorado Creek, about 0.4 mile south of Black Creek. It is in the SE1/4 of sec. 18, T. 20 

S., R. 3 E., of the Fairbanks Meridian. The prospect is shown as site 21 in Smith, 1981. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Arsenopyrite, gold, pyrite, pyrrhotite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The Black Creek prospect explores one of several mineral deposits in a belt south of 

Valdez Creek. The Valdez Creek area is underlain by pre-Upper Triassic pelitic clastic 

rocks, minor tuff, limestone lenses, and conglomerate. The rocks apparently vary 

abruptly in regional metamorphosed grade, from prehnite-pumpellyite through greenschist 

and amphibolite, to granulite. These rocks are intruded by Upper Jurassic alkali gabbro 

and by dioritic intrusions of Late Cretaceous and Early Tertiary age (Smith, 1981). 

 The bedding and foliation of the strata strike about N 75 E and dip steeply northwest. 

Strike-slip faults having a similar orientation are also present, particularly on the south 

side of Valdez Creek (Smith, 1981). On the north side of the creek, a northwest-dipping 

thrust fault in part explains an apparent 'telescoping' of the metamorphic rocks. 

 The Black Creek deposit apparently consists of sulfide-bearing, locally auriferous 

quartz veins in sheared, brecciated, and altered sedimentary and dioritic intrusive rocks. 

The sulfide minerals include arsenopyrite, pyrite, and pyrrhotite. Recurrent movement 

along faults, pulses of hydrothermal alteration, and recurrent injection of quartz veins has 

produced complex geology in the prospect area (Smith, 1981). The prospect area is rust 

stained in the vicinity of the adit due to the oxidation of iron sulfide minerals. There is a 

gold and arsenic geochemical anomaly around the prospect area. 

 Smith (1981) mapped an old adit consisting of about 200 feet of underground workings. 

He reported argillite, metagraywacke and dioritic intrusive rock, all displaying varying deHE212 
Alaska Resource Data File 

Page 431 

grees of shearing, quartz veining, and brecciation. Samples on ten foot intervals contained gold values as high as 120 parts per million. Underground development which terminated in 1998, did not find gold values of economic interest. No drilling has been 

done. 

Alteration:

 Pyritization; silicification; and local iron staining. 

Age of mineralization:

 Late Cretaceous or Early Tertiary, because the quartz veins cut dioritic intrusions that 

are probably that age. 

Deposit model:

Low-sulfide Au-quartz vein (Cox and Singer, 1987; model 36a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

36a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 One adit and short drifts totaling 220 feet in length. Samples of this adit contained 4 

ppm to 86 ppm gold (Smith, 1981). There is another adit and a small mill on the property. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Ross, 1933; Smith, 1970; Smith, 1981; Tuck, 1938. 

Primary reference: Smith, 1970 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE212 
Alaska Resource Data File 

Page 432 

Site name(s): Grogg Creek 

Site type: Prospect 

ARDF no.: HE213 

Latitude: 63.2058 Quadrangle: HE A-1 

Longitude: 147.1131 

Location description and accuracy:

 This gold placer prospect is along Gregg Creek, a tributary to upper Valdez Creek. The 

map site is near the head of Gregg Creek, in the S1/2 of sec. 2, T. 20 S., R. 3 E., of the 

Fairbanks Meridian. This location is accurate to with 200 feet. 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Gold 

Gangue minerals: 

Geologic description:

 Grogg Creek drains an area underlain by pelitic schists and small intrusions of intermediate composition. The creel flows over glacio-fluvial gravels, but none of the workings 

has exposed the deeper gravels. Gold in small concentrations occurs throughout the extent of the creek and there have been many small-scale, hand-mining operations. 

Alteration:

 

Age of mineralization:

 Probably the same age as the White Creek gravels (HE205); ie., younger than the paleochannels on lower Valdez Creek (HE194). 

Deposit model:

Placer Au-PGE (Cox and Singer, 1986; model 39a) 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

39a 

Production Status: Yes; small 

HE213 
Alaska Resource Data File 

Page 433 

Site Status: Inactive 

Workings/exploration:

 There are many indications of small scale mining, both past and recent, on Grogg 

Creek. All operations appear to have been limited to near-surface gravels, and operations 

were apparently conducted without the benefit of any drilling (D.L. Stevens, personal observations). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Smith, 1981. 

Primary reference: Smith, 1981 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE213 
Alaska Resource Data File 

Page 434 

Site name(s): Unnamed (south of lower Windy Creek) 

Site type: Occurrences 

ARDF no.: HE214 

Latitude: 63.09 Quadrangle: HE A-1 

Longitude: 147.36 

Location description and accuracy:

 This occurrence is at an elevation of about 4,800 feet on a ridge about 2.2 miles south of 

lower Windy Creek. The site is in the SE1/4 of sec. 16, T. 21 S., R. 2 E., of the Fairbanks 

Meridian. 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Azurite, bornite, chalcocite, chalcopyrite, covellite, native copper 

Gangue minerals: Epidote, quartz, siderite? 

Geologic description:

 The general area of this occurrence is underlain by the Middle or Upper Triassic Nikolai 

Greenstone, which consists of massive, subaerial and submarine basalt flows and minor 

interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). 

 The occurrence is in greenstone and consists of a small, hydrothermally altered shear 

zone containing epidote, copper sulfide minerals, and possibly native copper and an iron 

carbonate mineral. Weathering locally produces malachite and azurite-coated float and 

encrustations. 

Alteration:

 Propylitic alteration of greenstone. 

Age of mineralization:

 Triassic or younger. 

Deposit model:

Hydrothermally altered shear zone. 

Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

HE214 
Alaska Resource Data File 

Page 435 

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Surface chip sampling only. 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Kaufman, 1964 (PE 67-4); Glavinovich, 1967; Smith, 1981; Saunders, 1961; Nokleberg 

and others, 1992. 

Primary reference: Glavinovich, 1967 

Reporter(s): D.L. Stevens (Stevens Exploration Management Corporation) 

Last report date: 4/7/00 

HE214 
Alaska Resource Data File 

Page 436 

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