Alaska Resource Data File, 

Cordova quadrangle, Alaska 

By Steven W. Nelson 1 

Open-File Report 01-110 

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 01-110 

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Distribution of mineral occurrences in the Cordova

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:

 Steven W. Nelson

 Anchorage, AK

Cordova 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): Bligh Island (Alaska Commercial Co.) 

Site type: Prospect 

ARDF no.: CV001 

Latitude: 60.88 Quadrangle: CV D-8 

Longitude: 146.74 

Location description and accuracy:

 This prospect is at sea level near the northeastern end of Bligh Island. It is in the N1/2 

sec. 36, T. 11 S., R. 9 W., of the Copper River Meridian. The site is accurately located to 

within 2000 ft. This prospect is shown as site C-94 in Jansons and other (1984) and as 

loc. 2 in Cobb (1972: MF-392). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: Quartz 

Geologic description:

 The prospect is in volcanic rock of the Tertiary Orca Group (Nelson and other, 1985). 

Capps and Johnson (1913) describe an auriferous quartz vein in greenstone. In 1915 they 

reported values of 121 oz Au/ton, but that the prospect was mined out (Capps and Johnson, 1915) and the shaft caved. 

 Recent sampling of the prospect area yielded values of gold ranging from <0.03 ppm to 

0.03 ppm (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rock. 

Deposit model:

 

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

 

Production Status: None 

CV001 
Alaska Resource Data File 

Page 3 

Site Status: Inactive 

Workings/exploration:

 Recent sampling of the prospect area yielded values of gold ranging from <0.03 ppm to 

0.03 ppm (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1913; Capps and Johnson, 1915; Cobb, 1972 (MF-392); Jansons and 

others, 1984; Nelson and others, 1985. 

Primary reference: Cobb, 1972 (MF-392) 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV001 
Alaska Resource Data File 

Page 4 

Site name(s): Cloudman Bay 

Site type: Prospect 

ARDF no.: CV002 

Latitude: 60.836 Quadrangle: CV D-8 

Longitude: 146.722 

Location description and accuracy:

 This prospect is at sea level in the south bight of Cloudman Bay on Bligh Island. It is 

located in the SW1/4 sec. 7, T. 12 S., R. 8 W., of the Copper River Meridian. The site is 

accurately located to within 1000 ft. This prospect is shown as site C-93 in Jansons and 

others (1984) and as loc. 3 in Cobb (1972: MF-392). 

Commodities: 

 Main: Ag, Au 

 Other: 

Ore minerals: Chalcopyrite, pyrite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The country rock at this prospect is slate of the Tertiary Orca Group (Nelson and others, 

1985). Capps and Johnson (1915) reported a 20-to 30-foot-wide quartz stockwork zone in 

the slate carrying chalcopyrite, pyrite, and sphalerite. 

 Capps and Johnson (1913) reported 40 feet of stripping at the site. Samples across a 30 

foot width of stockwork ran a few dollars/ton when gold was $20/oz. (Capps and Johnson, 1915). Site could not be located in the early 1980s (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

 

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

 

Production Status: None 

CV002 
Alaska Resource Data File 

Page 5 

Site Status: Inactive 

Workings/exploration:

 Capps and Johnson (1913) reported 40 feet of stripping at the site. Samples across a 30 

foot width of stockwork ran a few dollars/ton when gold was $20/oz. (Capps and Johnson, 1915). Site could not be located in the early 1980s (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1913; Capps and Johnson, 1915; Cobb, 1972 (MF-392); Jansons and 

others, 1984; Nelson and others, 1985. 

Primary reference: Cobb, 1972 (MF392) 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV002 
Alaska Resource Data File 

Page 6 

Site name(s): Ellamar; Gladhaugh 

Site type: Mine 

ARDF no.: CV003 

Latitude: 60.8956 Quadrangle: CV D-8 

Longitude: 146.6985 

Location description and accuracy:

 The Ellamar mine is at and below sea level at the Ellamar townsite in Virgin Bay. It is 

in the SW1/4 sec. 19, T. 11 S., R 8 W., of the Copper River Meridian. The location is accurate to within 100 ft. This prospect is shown as #4 in Cobb (1972: MF-392) and as C91 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au 

Ore minerals: Bornite, chalcopyrite, cubanite, galena, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Calcite, epidote, quartz 

Geologic description:

 The country rocks at the Ellamar mine are mafic volcanic rocks and sedimentary rocks 

of the Tertiary Orca Group (Nelson and others, 1985). The deposit is associated with pillow basalt and a diabase dike, and consists of steeply-pitching stratabound lenticular sulfide ore bodies in folded and sheared graywacke and slate (argillite). The ore bodies consist chiefly of masses of pyrite, pyrrhotite, chalcopyrite, cubanite, bornite and sphalerite 

that form lenses up to 240 ft. wide and 500 ft. long. Gangue minerals are calcite, epidote, and quartz. One 35-foot-thick lens of pyrite overlies and is parallel to lenses of other 

sulfides (Moffit, 1954). 

 Three core holes were drilled in 1955-1956. Hole no. 2 cut 10 ft. of ore containing 

0.02% Cu, 0.02 oz. Au/ton, and 0.02 oz. Ag/ton; hole no. 3 cut 28 ft. of pyrite which contained 0.5% Cu, 0.085 oz. Au/ton, and 0.75 oz. Ag/ton (Jansons and others, 1984). Jansons and others (1984) sampled the property in the 1980s. A chip sample assayed 5.4% 

Cu, and 0.10 oz. Au/ton. A grab sample from the dump contained 50 ppm Cu, 0.006 oz. 

Au/ton, and 0.2 oz. Ag/ton. 

Alteration:

 

Age of mineralization:

CV003 
Alaska Resource Data File 

Page 7 

 Early Tertiary based on the age of the 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: Yes; medium 

Site Status: Inactive 

Workings/exploration:

 The Ellamar mine was developed by about 9300 feet of underground workings on eight 

levels, with connecting stopes between the levels. It was mined from about 1897 to 1920 

when the workings flooded. Three core holes were drilled in 1955-1956. Hole no. 2 cut 

10 ft. of ore containing 0.02% Cu, 0.02 oz. Au/ton, and 0.02 oz. Ag/ton; hole no. 3 cut 28 

ft. of pyrite which contained 0.5% Cu, 0.085 oz. Au/ton, and 0.75 oz. Ag/ton (Jansons 

and others, 1984). Jansons and others (1984) sampled the property in the 1980s. A chip 

sample assayed 5.4% Cu, and 0.10 oz. Au/ton. A grab sample from the dump contained 

50 ppm Cu, 0.006 oz. Au/ton and 0.2 oz. Ag/ton. 

Production notes:

 15,761,337 lbs. Cu, 51,305 oz. Au, and 191,615 oz. Ag were recoverd from 301,835 

tons of ore (Jansons and others, 1984). 

Reserves:

 Indicated Reserves: 36,000 tons @ 2% Cu, 0.1 oz. Au/ton, and 0.5 oz. Ag/ton. Inferred 

Reserves: 500,000 tons @ 0.5% Cu, 0.085 oz. Au/ton, and 0.75 oz. Ag/ton (Jansons and 

others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Moffit, 1954; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and others, 1985; 

Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV003 
Alaska Resource Data File 

Page 8 

Site name(s): McNaughton and Turner 

Site type: Prospect 

ARDF no.: CV004 

Latitude: 60.92 Quadrangle: CV D-8 

Longitude: 146.64 

Location description and accuracy:

 This prospect is at the 500 foot elevation about 0.5 mile west of Turner Lake. It is in the 

E1/2 sec. 16, T. 11 S., R 8 W., of the Copper River Meridian. The location is accurate to 

within 2000 ft. This prospect is shown as #5 in Cobb (1972: MF-392) and as C-90 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Chalcopyrite, malachite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of lenses of quartz, 

chalcopyrite, malachite, and sphalerite in a shear zone in graywacke near the contact of 

mafic volcanic rock (Cobb, 1979: OFR 79-973). 

Alteration:

 Local oxidation of sulfides. 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV004 
Alaska Resource Data File 

Page 9 

Site Status: Inactive 

Workings/exploration:

 One 70 foot tunnel reported by Cobb (1979: OFR 79-973) that could not be located in 

the early 1980s (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Cobb, 1979 (OFR 79-973) 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV004 
Alaska Resource Data File 

Page 10 

Site name(s): Wagner 

Site type: Prospect 

ARDF no.: CV005 

Latitude: 60.8899 Quadrangle: CV D-8 

Longitude: 146.6434 

Location description and accuracy:

 The adit of the Wagner prospect is at the 300 foot elevation on the west side of Boulder 

Bay. The site is in the NE1/4 sec. 28, T. 11 S., R 8 W., of the Copper River Meridian. The 

location is accurate to within 500 ft. This prospect is shown as #6 in Cobb (1972: MF392) and as C-89 in Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of quartzchalcopyrite lenses in a shear zone in graywacke (Cobb, 1979: OFR 79-973). 

 Workings visible in the 1980s consisted of one caved adit (Jansons and others, 1984), 

originally reported to be 285 feet long (Cobb, 1979: OFR 79-973). A selected grab sample 

from the dump contained 39 ppm Cu (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV005 
Alaska Resource Data File 

Page 11 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Workings visible in the 1980s consisted of one caved adit (Jansons and others, 1984), 

originally reported to be 285 feet long (Cobb, 1979: OFR 79-973). A selected grab sample 

from the dump contained 39 ppm Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

 This site is shown as a 'mine' on the map. Since there was no production from this deposit it is designated herein as a 'prospect.' 

References:

Capps and Johnson, 1915; Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Jansons 

and others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and others, 

1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV005 
Alaska Resource Data File 

Page 12 

Site name(s): Rua 

Site type: Prospect 

ARDF no.: CV006 

Latitude: 60.8839 Quadrangle: CV D-8 

Longitude: 146.6437 

Location description and accuracy:

 The map site of this prospect is at the position of the main tunnel, which is at the 500 

foot elevation on the west side of Boulder Bay. The site is in the SE1/4 sec. 28, T. 11 S., 

R 8 W., of the Copper River Meridian. The location is accurate to within 500 ft. This 

prospect is shown as #6 in Cobb (1972: MF-392) and as C-88 in Jansons and others 

(1984). 

 Note: This site is different from the Rua Cove prospect on Knight Island in Prince William Sound. 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Pyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of lenses of pyrite 

and pyrrhotite in a shear zone in mafic volcanic rocks (Jansons and others, 1984). 

 This prospect was explored in the early 1900s by a 60-foot-long adit. Cobb (1979: OFR 

79-973) reports some 'sacks of ore on beach.' One chip sample contained 900 ppm Cu and 

0.19% Zn (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

CV006 
Alaska Resource Data File 

Page 13 

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

24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 This prospect was explored in the early 1900s by a 60-foot-long adit. Cobb (1979: OFR 

79-973) reports some 'sacks of ore on beach.' One chip sample contained 900 ppm Cu and 

0.19% Zn (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

 This site is shown as a 'mine' on the map. Since there was no production from this deposit it is designated herein as a 'prospect'. 

References:

Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV006 
Alaska Resource Data File 

Page 14 

Site name(s): Reynolds-Alaska Development Co. 

Site type: Mine 

ARDF no.: CV007 

Latitude: 60.883 Quadrangle: CV D-8 

Longitude: 146.628 

Location description and accuracy:

 The map site of this mine is at the position of the main tunnel, which is at sea level on 

the east side of Boulder Bay. The site is in the S1/2 sec. 27, T. 11 S., R 8 W., of the Copper River Meridian. The location is accurate to within 1000 ft. This mine is shown as #7 

in Cobb (1972: MF-392) and as C-87 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Chalcopyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 The country rocks at this mine are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of massive sulfide 

lenses, and sulfide veins, disseminations, and thin selvages in shear zones (Jansons and 

others,1984). The sulfide minerals are chalcopyrite, pyrrhotite, and sphalerite. The ore 

minerals are restricted to north-trending and steeply-dipping shears at the contact of volcanic and sedimentary rock. 

 Grant and Higgins (1909) report that some large beach boulders were shipped as ore. 

Chip samples collected in the 1980s contained 0.6 to 1.7% Cu, 225 ppm to 0.61% Zn, and 

2.4 ppm to 8.9 ppm Ag; grab samples contained 60 ppm to 6% Cu, 67 ppm to 1.7% Zn, 

and 1.1 ppm to 13 ppm Ag (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

CV007 
Alaska Resource Data File 

Page 15 

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

24a 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 The mine was developed in the early 1900s by 2100 feet of drifts (main tunnel), numerous crosscuts, winzes and raises, and at least 500 ft. of additional tunnels (Capps and 

Johnson, 1915). One 200 ft. tunnel was caved by the early 1980s (Jansons and others, 

1984). Grant and Higgins (1909) report that some large beach boulders were shipped as 

ore. Chip samples collected in the 1980s contained 0.6 to 1.7% Cu, 225 ppm to 0.61% 

Zn, and 2.4 ppm to 8.9 ppm Ag; grab samples contained 60 ppm to 6% Cu, 67 ppm to 

1.7% Zn, and 1.1 ppm to 13 ppm Ag (Jansons and others, 1984). 

Production notes:

 215,000 lbs. Cu were recoverd from 2,850 tons of ore (Jansons and others, 1984). 

Reserves:

 Inferred reserves of 600 tons @ 1.37% Cu, 0.28% Zn, and 6.67 ppm Ag (Jansons and 

others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Grant and Higgins, 1909; Capps and Johnson, 1915; Cobb, 1972 (MF-392); 

Jansons and others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and 

others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV007 
Alaska Resource Data File 

Page 16 

Site name(s): Fielder and Hemple 

Site type: Prospect 

ARDF no.: CV008 

Latitude: 60.88 Quadrangle: CV D-7 

Longitude: 146.624 

Location description and accuracy:

 This prospect is at an elevation of about 200 feet approximately one mile NW of Bells 

Butte in the S1/2 sec. 27, T. 11 S., R. 8 W., of the Copper River Meridian. The location is 

accurate to within 1000 ft. This prospect is shown as C-86 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of irregular masses 

of quartz, chalcopyrite, pyrite, and pyrrhotite in a 30-foot-wide shear zone cutting mafic 

volcanic rocks (Jansons and others, 1984). 

 The prospect was explored by two adits. One is 250 ft. long and the other is 20 ft. long. 

Five grab and two chip samples contained 50 ppm to 0.5% Cu and 440 ppm to 0.1% Zn 

(Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV008 
Alaska Resource Data File 

Page 17 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 The prospect was explored by two adits. One is 250 ft. long and the other is 20 ft. long. 

Five grab and two chip samples contained 50 ppm to 0.5% Cu and 440 ppm to 0.1% Zn 

(Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and 

others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV008 
Alaska Resource Data File 

Page 18 

Site name(s): Mogul (Banta and Cameron) 

Site type: Prospect 

ARDF no.: CV009 

Latitude: 60.9 Quadrangle: CV D-7 

Longitude: 146.601 

Location description and accuracy:

 This prospect is at an elevation of about 1800 feet on the west side of Vesuvius Valley, 

approximately one mile west-southwest of Millard Lake. It is in W1/2 sec. 23, T. 11 S., 

R. 8 W., of the Copper River Meridian. The location is accurate to within 1000 ft. This 

prospect is shown as #8 in Cobb (1972: MF-392) and as C-85 in Jansons and others 

(1984). 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 The country rocks at these prospects are mafic volcanic rocks and sedimentary rocks of 

the Tertiary Orca Group (Nelson and others, 1985). The deposit consists of irregular 

masses of chalcopyrite, pyrite, pyrrhotite, and sphalerite in a shear zone up to four feet 

wide in mafic volcanic rocks (Jansons and others, 1984). 

 The prospect was explored by a 13-foot shaft and several surface excavations. Six chip 

samples contained 620 ppm to 0.37% Cu (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV009 
Alaska Resource Data File 

Page 19 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 The prospect was explored by a 13-foot shaft and several surface excavations. Six chip 

samples contained 620 ppm to 0.37% Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 Inferred reserves of 400 tons @ 0.25% Cu (Jansons and others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and others, 1985; 

Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV009 
Alaska Resource Data File 

Page 20 

Site name(s): Copper Mountain 

Site type: Prospect 

ARDF no.: CV010 

Latitude: 60.897 Quadrangle: D-7 

Longitude: 146.596 

Location description and accuracy:

 This prospect is at an elevation of about 1500 feet on the west side of Vesuvius Valley, 

approximately one mile southwest of Millard Lake. It is in S1/2 sec. 23, T. 11 S., R. 8 W., 

of the Copper River Meridian. The location is accurate to within 1000 ft. This prospect is 

shown as C-84 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Co 

Ore minerals: Chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of 

the Tertiary Orca Group (Nelson and others, 1985). The deposit consists of quartz and 

chalcopyrite in a 6-inch-wide shear zone cutting mafic volcanic rock (Jansons and others, 

1984). 

 One 20-foot adit was sampled in the early 1980s (Jansons and others, 1984). A chip 

sample contained 1.87% Cu, 800 ppm Zn, and 10.9 ppm Ag; one grab sample contained 

11.7% Cu, 0.35% Zn, 43.5 ppm Ag, and 770 ppm Co. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV010 
Alaska Resource Data File 

Page 21 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 One 20-foot adit was sampled in the early 1980s (Jansons and others, 1984). A chip 

sample contained 1.87% Cu, 800 ppm Zn, and 10.9 ppm Ag; one grab sample contained 

11.7% Cu, 0.35% Zn, 43.5 ppm Ag, and 770 ppm Co. 

Production notes:

 

Reserves:

 Inferred reserves of 300 tons @ 1.87% Cu (Jansons and others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and 

others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV010 
Alaska Resource Data File 

Page 22 

Site name(s): Galena Bay Mining Co. (Vesuvius Valley) 

Site type: Prospects 

ARDF no.: CV011 

Latitude: 60.878 Quadrangle: CV D-7 

Longitude: 146.594 

Location description and accuracy:

 This site represents several prospects in a roughly circular, half-mile-square, area at 

about 2000 feet elevation on the northeast face of Bells Butte. The area is in the N1/2 

secs. 26 and 35, T. 11 S., R. 8 W., of the Copper River Meridian. The location is accurate 

to within 1000 ft. This area of prospects is shown in Cobb (1972: MF-392) as sites #9 and 

#10; in Jansons and others it is shown as site C-83. 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The country rocks at these prospects are mafic volcanic rocks and sedimentary rocks of 

the Tertiary Orca Group (Nelson and others, 1985). The deposit consists of shear-zonehosted masses of calcite, quartz, chalcopyrite, pyrite, pyrrhotite, and sphalerite. Capps and 

Johnson (1915) reported that most of the ore was found in numerous 1- to 20-ft.-wide 

shear zones in pillow basalt (greenstone). The shear zone containing most of the early 

workings is 1000 ft. long. 

 Jansons and others (1984) collected chip samples that contained 58 ppm to 13% Cu, 46 

ppm to 2% Zn, and <0.1 ppm to 32.8 ppm Ag; their grab samples contained 80 ppm to 

6.1% Cu, 790 ppm to 20.1% Zn, and 1.1 ppm to 20 ppm Ag. Small amounts of gold were 

reported in earlier assays (Capps and Johnson, 1915). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

CV011 
Alaska Resource Data File 

Page 23 

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 

Workings/exploration:

 Capps and Johnson (1915) reported nine adits with a total of about 3000 ft. of underground workings, and some open cuts and buildings. The longest (2200 ft) adit was 

caved by the early 1980s (Jansons and others, 1984). Jansons and others (1984) collected 

chip samples that contained 58 ppm to 13% Cu, 46 ppm to 2% Zn, and <0.1 ppm to 32.8 

ppm Ag; their grab samples contained 80 ppm to 6.1% Cu, 790 ppm to 20.1% Zn, and 1.1 

ppm to 20 ppm Ag. Small amounts of gold were reported in earlier assays (Capps and 

Johnson, 1915). 

Production notes:

 

Reserves:

 Inferred reserves of 5,800 tons @ 7.9% Cu, 1.3% Zn, and 5 ppm Ag (Jansons and others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1915; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV011 
Alaska Resource Data File 

Page 24 

Site name(s): Threeman Mining Co. 

Site type: Prospect 

ARDF no.: CV012 

Latitude: 60.874 Quadrangle: CV D-7 

Longitude: 146.57 

Location description and accuracy:

 This prospect is at an elevation of about 1600 ft., approximately 0.75 mi. northeast of 

Copper Mountain. It is in S1/2 sec. 36, T. 11 S., R. 8 W., of the Copper River Meridian. 

The location is accurate to within 1000 ft. This site is shown as C-82 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Chalcopyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of up to foot-thick 

lenses of chalcopyrite and pyrrhotite 

in two-foot- to 15-foot-wide shear zones. 

 Three chip samples contained 200 ppm to 1% Cu, 145 ppm to 0.89% Zn, and <0.2 to 6 

ppm Ag; a grab sample from the dump contained 4.9% Cu, 0.49% Zn, and 50 ppm Ag 

(Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV012 
Alaska Resource Data File 

Page 25 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 One 41-foot-long adit. Three chip samples contained 200 ppm to 1% Cu, 145 ppm to 

0.89% Zn, and <0.2 to 6 ppm Ag; a grab sample from the dump contained 4.9% Cu, 

0.49% Zn, and 50 ppm Ag (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and 

others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV012 
Alaska Resource Data File 

Page 26 

Site name(s): Tibbit 

Site type: Prospect 

ARDF no.: CV013 

Latitude: 60.873 Quadrangle: CV D-7 

Longitude: 146.564 

Location description and accuracy:

 The Tibbit prospect is at an elevation of about 1600 ft., approximately 0.75 mi. northeast of Copper Mountain. It is in S1/2 sec. 36, T. 11 S., R. 8 W., of the Copper River Meridian. The location is accurate to within 1000 ft. This prospect is shown as #11 in Cobb 

(1972: MF-392) and as C-81 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of chalcopyrite, pyrite, and pyrrhotite in one- to eight- foot wide shear zones (Cobb, 1979: MF-392). 

 Jansons and others (1984) report that two grab samples contained 0.59% and 2% Cu, 

and 1.8 ppm and 6.4 ppm Ag; two chip samples contained 430 ppm and 0.93% Cu, 240 

ppm and 0.13% Zn, and 3.4 ppm and 12.7 ppm Ag. Cobb (1979: OFR 79-973) reported 

one assay value of 1.9 oz Au/ton. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV013 
Alaska Resource Data File 

Page 27 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 The deposit was explored in the early 1900s by four adits and by open cuts (Cobb, 

1979: MF-392). However, in the 1980s only one 20 ft. adit could be found (Jansons and 

others, 1984). Jansons and others (1984) report that two grab samples contained 0.59% 

and 2% Cu, and 1.8 ppm and 6.4 ppm Ag, and that two chip samples contained 430 ppm 

and 0.93% Cu, 240 ppm and 0.13% Zn, and 3.4 ppm and 12.7 ppm Ag. Cobb (1979: OFR 

79-973) reported one assay value of 1.9 oz Au/ton. 

Production notes:

 

Reserves:

 Inferred reserves of 500 tons @ 0.72% Cu. 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV013 
Alaska Resource Data File 

Page 28 

Site name(s): Reynolds-Alaska Development Co. 

Site type: Prospect 

ARDF no.: CV014 

Latitude: 60.869 Quadrangle: CV D-7 

Longitude: 146.561 

Location description and accuracy:

 This prospect is at an elevation of about 1700 feet, approximately 0.75 mile northeast of 

Copper Mountain. It is in S1/2 sec. 36, T. 11 S., R. 8 W., of the Copper River Meridian. 

The location is accurate to within 1000 ft. This prospect is shown as #12 in Cobb (1972: 

MF-392) and as C-79 in Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: Ag, Zn 

Ore minerals: Chalcopyrite, pyrrhotite, sphalerite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of chalcopyrite, pyrrhotite, and sphalerite in a 1-to 20- foot-wide shear zone in volcanic rocks (Capps and 

Johnson, 1915). 

 Capps and Johnson (1915) reported assays of 11.4 to 12.5% Cu and 0.18 oz Au and 

0.26 oz Ag per ton. Later development included four adits with about 820 ft. of underground workings and some open cuts. Three of the adits are caved or flooded (Jansons 

and others, 1984). Chip samples from the open cuts contained 0.18% to 8.4% Cu, 170 

ppm to 0.25% Zn, and 0.8 ppm to 28 ppm Ag (Jansons and other, 1984). Grab samples 

gave the following values: 100 ppm to 9.75% Cu, 100 ppm to 1.05% Zn, and 0.8 ppm to 

9.5 ppm Ag. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

CV014 
Alaska Resource Data File 

Page 29 

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 

Workings/exploration:

 Site was discovered in 1899 and by 1912 there were 900 feet of underground workings. 

Capps and Johnson (1915) reported assays of 11.4 to 12.5 % Cu; and 0.18 oz Au and 0.26 

oz Ag per ton. Later development included four adits with about 820 ft. of underground 

workings and some open cuts. Three of the adits are caved or flooded (Jansons and others, 1984). Chip samples from the open cuts contained 0.18% to 8.4% Cu, 170 ppm to 

0.25% Zn, and 0.8 ppm to 28 ppm Ag (Jansons and other, 1984); Grab samples gave the 

following values: 100 ppm to 9.75% Cu, 100 ppm to 1.05% Zn, and 0.8 ppm to 9.5 ppm 

Ag. 

Production notes:

 

Reserves:

 Inferred reserves of 3000 tons @ 4.6% Cu, 0.14% Zn, and 15.65% Ag (Jansons and others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1915; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV014 
Alaska Resource Data File 

Page 30 

Site name(s): Falck 

Site type: Prospect 

ARDF no.: CV015 

Latitude: 60.866 Quadrangle: CV D-7 

Longitude: 146.569 

Location description and accuracy:

 The Falck prospect is at an elevaation of about 2400 ft., about 0.5 mile east of Copper 

Mountain. It is in S1/2 sec. 36, T. 11 S., R. 8 W., of the Copper River Meridian. The location is accurate to within 1000 ft. This prospect is shown as #12 in Cobb (1972: MF-392) 

and as C-78 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Chalcopyrite, native Cu, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of 

the Tertiary Orca Group (Nelson and others, 1985). The deposit consists of sulfide minerals and native copper in veinlets and as disseminations in a northwest-striking, steeplydipping shear zone in the volcanic and sedimentary rocks (Capps and Johnson, 1915). 

The sulfides are chalcopyrite, pyrite, pyrrhotite, and sphalerite. 

 Analyses of chip samples contained 0.11% to 7.5% Cu, 240 ppm to 0.68% Zn, and 0.7 

ppm to 18.3 ppm Ag (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV015 
Alaska Resource Data File 

Page 31 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Capps and Johnson (1915) report a 25 ft. adit and a 15 ft. adit, along with minor surface cuts. In the 1980s only the 25 ft. adit was still accessible (Jansons and others, 1984). 

Analyses of chip samples contained 0.11% to 7.5% Cu, 240 ppm to 0.68% Zn, and 0.7 

ppm to 18.3 ppm Ag (Jansons and others, 1984). 

Production notes:

 

Reserves:

 Inferred reserves of 200 tons @ 2.03% Cu, 0.23% Zn, 13 ppm Ag (Jansons and others, 

1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1915; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV015 
Alaska Resource Data File 

Page 32 

Site name(s): Standard Copper Mines Co. 

Site type: Mine 

ARDF no.: CV016 

Latitude: 60.862 Quadrangle: CV D-7 

Longitude: 146.577 

Location description and accuracy:

 This mine is at an elevation of about 1800 feet, about 0.5 mile southeast of Copper 

Mountain. It is in the NW1/4 sec. 1, T. 12 S., R. 8 W., of the Copper River Meridian. The 

location of the site is accurate to within 1000 ft. This site is loc. 13 in Cobb (1972: MF392) and loc. C-77 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Quartz, calcite 

Geologic description:

 The country rocks at this mine are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of quartz, calcite, 

and massive sulfides in shear zones cutting the volcanic rocks. A 6 ft. x 32 ft. lens of 

massive sulfide was observed by Mihelich and Wells (1957), but most of the sulfide bodies are smaller (Jansons and others, 1984). The sulfide minerals are chalcopyrite, pyrite, 

pyrrhotite, and sphalerite. 

 Chip samples collected in 1955 (Mihelich and Wells,1957) contained 0.07% to 6.1% 

Cu. Jansons and others (1984) report that three chip samples from the 660-ft.-long adit 

contained 280 ppm to 0.89% Cu, 200 ppm to 0.9% Zn, 0.01 ppm to 0.11 ppm Au, and 0.5 

ppm to 2.5 ppm Ag. Three grab samples from the adit contained 0.70% to 2% Cu, 200 

ppm to 2% Zn, 0.08 ppm to 0.19 ppm Au, and 2.3 ppm to 6.1 ppm Ag. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

CV016 
Alaska Resource Data File 

Page 33 

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

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

24a 

Production Status: Yes 

Site Status: Inactive 

Workings/exploration:

 Grant and Higgins (1909) report five adits on the steep slopes of Copper Mountain and 

a tram to an ore bunker on the shore of Landlocked Bay. Only three of the adits could be 

located in the 1980s (Jansons and others, 1984). Chip samples collected in 1955 

(Mihelich and Wells,1957) contained 0.07% to 6.1% Cu. Jansons and others (1984) report that three chip samples from the 660-ft.-long adit contained 280 ppm to 0.89% Cu, 

200 ppm to 0.9% Zn, 0.01 ppm to 0.11 ppm Au, and 0.5 ppm to 2.5 ppm Ag. Three grab 

samples from the adit contained 0.70% to 2% Cu, 200 ppm to 2% Zn, 0.08 ppm to 0.19 

ppm Au, and 2.3 ppm to 6.1 ppm Ag. 

Production notes:

 32,000 lbs. Cu, 518 oz. Ag, and 36 oz. Au were recovered from 1,100 tons of ore. However, it is felt that not all the recovered gold and silver were reported (Mihelich and 

Wells, 1957). 

Reserves:

 Inferred reserves of 4,300 tons @ 2.89% Cu (Jansons and others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Grant and Higgins, 1909; Mihelich and Wells, 1957; Cobb, 1972 (MF-392); 

Jansons and others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and 

others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV016 
Alaska Resource Data File 

Page 34 

Site name(s): Montezuma (Threeman Mining Co.) 

Site type: Prospect 

ARDF no.: CV017 

Latitude: 60.862 Quadrangle: CV D-7 

Longitude: 146.568 

Location description and accuracy:

 The Montezuma prospect is at an elevation of about 1500 feet, about 0.5 mile southeast 

of Copper Mountain. It is in the N1/2 sec. 1, T. 12 S., R. 8 W., of the Copper River Meridian. The site location is accurate to within 1000 ft. This prospect is shown as site C-76 

in Jansons and others (1984) and as site #13 in Cobb (1972: MF-392). 

Commodities: 

 Main: Cu 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this prospect are mafic volcanic rocks and sedimentary rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The deposit consists of irregular lenses 

of quartz, chalcopyrite, pyrite, and pyrrhotite in several highly mineralized shear zones in 

the volcanic rocks (Mihelich and Wells, 1957). 

 A sample from a quartz-filled shear zone one foot wide in volcanic rocks contained 

0.5% Cu, 0.08 oz. Ag/ton, and 0.18 oz. Au/ton (Mihelich and Wells, 1957). Jansons and 

others (1984) report that chip samples contained 0.74% to 3.2% Cu, 3.2 ppm to 20 ppm 

Ag, and grab samples contained 125 ppm to 0.75% Cu, and 0.92 ppm to 10 ppm Ag. 

Alteration:

 

Age of mineralization:

 Tertiary based on the age of the host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

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

CV017 
Alaska Resource Data File 

Page 35 

24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Mihelich and Wells (1957) report more than 300 feet of underground workings and 900 

feet of surface stripping. A sample from a quartz-filled shear zone one foot wide in volcanic rocks contained 0.5% Cu, 0.08 oz. Ag/ton, and 0.18 oz. Au/ton (Mihelich and 

Wells, 1957). Jansons and others (1984) report that chip samples contained 0.74% to 

3.2% Cu, 3.2 ppm to 20 ppm Ag, and grab samples contained 125 ppm to 0.75% Cu, and 

0.92 ppm to 10 ppm Ag. 

Production notes:

 

Reserves:

 Inferred reserves of 200 tons @ 1.67% Cu and 9.88 ppm Ag (Jansons and others, 1984). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Mihelich and Wells, 1957; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV017 
Alaska Resource Data File 

Page 36 

Site name(s): Alaska-Pioneer-Sourdough, Steinmetz, and Alaska Commercial Co. 

Site type: Mine and prospect 

ARDF no.: CV018 

Latitude: 60.855 Quadrangle: CV D-7 

Longitude: 146.543 

Location description and accuracy:

 This site represents a mine and several prospects on the north side of inner Landlocked 

Bay. The map site is at an elevation of about 500 feet on a south-facing bluff above the 

bay. It is in the SW1/4 sec. 6, T. 12 S., R. 7 W., of the Copper River Meridian. The site is 

accurately located to within 1000 ft. This location is a combination of sites C-72, C-75, 

and C-80 of Jansons and others (1984), and site #14 of Cobb (1972: MF-392). 

Commodities: 

 Main: Cu, Pb, Zn 

 Other: Ag, Au 

Ore minerals: Arsenopyrite, bornite, chalcopyrite, marcasite, pyrite, specularite 

Gangue minerals: Quartz 

Geologic description:

 The mineral deposits at this site are in sheared mafic volcanic rocks of the Tertiary Orca 

Group (Nelson and others, 1985). They consist of 2-inch- to 4-ft.-wide lenses of massive 

sulfide accompanied by quartz gangue. Metalliferous minerals include arsenopyrite, bornite, chalcopyrite, marcasite, pyrite, and specularite. 

 Early copper values reportedly were 11.4% to 12.5% Cu (Grant, 1906). Jansons and 

others (1984) report that a grab sample from the area contained 7.9% Cu. Chip samples 

contained 0.2%-3.9% Cu, along with a trace to 0.11 oz Au/ton. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rock. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

CV018 
Alaska Resource Data File 

Page 37 

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

24a 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 The first discovery of copper (1897) in Prince William Sound was made in this area 

(Schrader, 1900). Capps and Johnson (1915) reported several adits, open cuts and a shaft. 

Early copper values reportedly were 11.4% to 12.5% Cu (Grant, 1906). Jansons and others (1984) report that a grab sample from the area contained 7.9% Cu. Chip samples contained 0.2%-3.9% Cu, along with a trace to 0.11 oz Au/ton. 

Production notes:

 720 lbs. copper from 70 tons of ore shipped in 1905 (Grant, 1906). 

Reserves:

 500 tons @ 2.27% Cu inferred reserves (Jansons and others, 1984). 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Schrader, 1900; Grant, 1906; Capps and Johnson, 1915; Cobb, 1972 (MF-392); Jansons 

and others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and others, 

1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV018 
Alaska Resource Data File 

Page 38 

Site name(s): Fielder & Hemple 

Site type: Prospect 

ARDF no.: CV019 

Latitude: 60.858 Quadrangle: CV D-7 

Longitude: 146.54 

Location description and accuracy:

 This prospect is at an elevation of about 700 ft. on the north side of inner Landlocked 

Bay, and about 0.5 mile north of VABM Dick. It is in the W1/2 sec. 6, T. 12 S., R. 7 W., 

of the Copper River Meridian. The site location is accurate to within 1000 ft. This location corresponds to site C-74 in Jansons and other (1984) and to #14 in Cobb (1972: MF392). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 The deposit at this prospect is in mafic volcanic and sedimentary rocks of the Tertiary 

Orca Group (Nelson and others, 1985). It consists of a 24-foot-wide shear zone in pillow 

basalts and slates that contains small masses of sulfides and quartz as well as sulfide-rich 

stringers. The zone is traceable for at least 1,500 feet along strike (Capps and Johnson, 

1913). The sulfide minerals are chalcopyrite, pyrite, and pyrrhotite. 

 Sampling by Mihelich and Wells (1957) gave the following results: five chip samples 

from the 1200 ft. adit contained <0.1% to 1.1% Cu, <0.1 to 1.3% Zn, trace to 0.32 oz. Au/

ton, and 0.02 to 0.32 oz.Ag/ton. Sampling by Jansons and others (1984) gave the following results: five chip samples contained 0.19% to 2.6% Cu, 800 ppm to 0.7% Zn, 2.6 

ppm to 3.7 ppm Ag, and <0.03 ppm to 0.12 ppm Au. Selected grab samples contained 

4.5% and 4.6% Cu, 1.7% and 1.8% Zn, 4.1 ppm and 13 ppm Ag, and 0.06 ppm and 3.1 

ppm Au. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

CV019 
Alaska Resource Data File 

Page 39 

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: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Capps and Johnson (1913) reported four adits having the following lengths: 1200 ft., 

250 ft., 65 ft., and 18 ft. There were also minor surface workings. Only two adits could be 

found during later exploration (Jansons and others, 1984). Sampling by Mihelich and 

Wells (1957) gave the following results: five chip samples from the 1200 ft. adit contained <0.1% to 1.1% Cu, <0.1 to 1.3% Zn, trace to 0.32 oz. Au/ton, and 0.02 to 0.32 oz.

Ag/ton. Sampling by Jansons and others (1984) gave the following results: five chip samples contained 0.19% to 2.6% Cu, 800 ppm to 0.7% Zn, 2.6 ppm to 3.7 ppm Ag, and 

<0.03 ppm to 0.12 ppm Au. Selected grab samples contained 4.5% and 4.6% Cu, 1.7% 

and 1.8% Zn, 4.1 ppm and 13 ppm Ag, and 0.06 ppm and 3.1 ppm Au. 

Production notes:

 

Reserves:

 Inferred reserves ( Mihelich and Wells, 1957) are 6,300 tons @ 1.3% Cu. 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1913; Mihelich and Wells, 1957; Cobb, 1972 (MF-392); Jansons and 

others, 1984; Nelson and others, 1985; Crowe and others, 1992; Crowe and others, 1993; 

Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV019 
Alaska Resource Data File 

Page 40 

Site name(s): Threeman (Standard Copper) 

Site type: Mine 

ARDF no.: CV020 

Latitude: 60.855 Quadrangle: CV D-7 

Longitude: 146.537 

Location description and accuracy:

 The mine is at an elevation of about 300 feet above the north shore of inner Landlocked 

Bay, and about 0.25 mile north-northeast of VABM Dick. It is in the S1/2 sec. 6, T. 12 S., 

R. 7 W., of the Copper River Meridian. The site location is accurate to within 1000 ft. 

The location corresponds to site C-73 in Jansons and others (1984) and to #14 in Cobb 

(1972: MF-392). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au, Co 

Ore minerals: Chalcopyrite, cubanite, galena, pyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 The deposit at this mine is in mafic volcanic and sedimentary rocks of the Tertiary Orca 

Group (Nelson and others, 1985). It consists of two sulfide lenses up to about 6 ft wide 

and over 300 ft. long in pillow basalt and sedimentary rocks (Mihelich and Wells, 1957). 

Sulfide minerals include chalcopyrite, cubanite, galena, pyrite, pyrrhotite, and sphalerite. 

 Chip and grab samples contained 53 ppm to 5.25% Cu, 40 ppm to 2.85% Zn, <0.02 

ppm to 0.10 ppm Au, <1 ppm to 22 ppm Ag, and 5 to 700 ppm Co (Jansons and others, 

1984). Sixteen chip samples taken in 1955 contained 0.3 % to 8.6% Cu, 0.05% to 0.64% 

Zn, trace to 0.07 oz.Au/ton and trace to 0.78 oz. Ag/ton (Mihelich and Wells, 1957). 

Alteration:

 

Age of mineralization:

 Probably Tertiary baased on the age of the host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

CV020 
Alaska Resource Data File 

Page 41 

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

24a 

Production Status: Yes; medium 

Site Status: Inactive 

Workings/exploration:

 There are several thousand feet of workings on three levels. Three adits were caved 

when visited by this reporter in 1974 and 1986 (also see Sainsbury, 1993). Chip and grab 

samples contained 53 ppm to 5.25% Cu, 40 ppm to 2.85% Zn, <0.02 ppm to 0.10 ppm 

Au, <1 ppm to 22 ppm Ag, and 5 to 700 ppm Co (Jansons and others, 1984). Sixteen 

chip samples taken in 1955 contained 0.3 % to 8.6% Cu, 0.05% to 0.64% Zn, trace to 

0.07 oz.Au/ton and trace to 0.78 oz. Ag/ton (Mihelich and Wells, 1957). 

Production notes:

 1,159,660 lbs. Cu, 101 oz. Au, 5,308 oz. Ag from 6,196.5 tons ore (Mihelich and Wells, 

1957). 

Reserves:

 Inferred reserves of 1,902,000 tons @ 1.05% Cu (Sainsbury, 1953). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Mihelich and Wells, 1957; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Mihelich and Wells, 1957 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV020 
Alaska Resource Data File 

Page 42 

Site name(s): Hoodoo and South Landlocked Bay Mining Co. 

Site type: Mine/prospect 

ARDF no.: CV021 

Latitude: 60.85 Quadrangle: CV D-7 

Longitude: 146.55 

Location description and accuracy:

 This site represents a mine and a prospect along the south shore of Landlocked Bay. 

The map site is at an elevation of about 150 feet, just inland from the bay. It is in the 

NW1/4 sec. 7, T. 12 S., R. 7 W., of the Copper River Meridian. The site location is accurate to within 2000 ft. This site combines both sites C-70 and C-71 of Jansons and others 

(1984) and site #15 of Cobb (1972: MF-392). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, native copper, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The mineral deposits at this site are in mafic volcanic rocks (greenstone) of the Tertiary 

Orca Group (Nelson and others, 1985) and consist of massive sulfide lenses in shear 

zones 1.5 ft. to 3 ft. wide (Jansons and others, 1984). The ore minerals are mainly chalcopyrite and sphalerite; native copper is also reported. 

 Development work began in 1904 (Cobb, 1979: OFR 79-973). Extensive surface stripping at 230 feet elevation exposed about 75 feet of a 3-foot-wide mineralized zone in 

metavolcanic rock striking N45W, and dipping 60 NE. Four tunnels were driven, the 

longest of which was 180 feet (Capps and Johnson, 1913). In 1953 one tunnel was inaccessible (Mihelich and Wells, 1957). Early assays contained 0.48 to 1.06 oz. Au/ton. Recent sampling (Jansons and others, 1984) of five chip samples from one adit contained 

0.11 ppm to 2.9% Cu, 680 ppm to 0.95% Zn, <0.03 to 0.03 ppm Au, and 0.2 to 13.9 ppm 

Ag. Three grab samples contained 1.14% to 19.3% Cu, 0.95 to 2.25% Zn, 0.15 ppm to 44 

ppm Au, and 0.23 ppm to 34 ppm Ag. 

Alteration:

 Oxidation of copper minerals. 

CV021 
Alaska Resource Data File 

Page 43 

Age of mineralization:

 Tertiary based on the age of the 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: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Development work began in 1904 (Cobb, 1979: OFR 79-973) Extensive surface stripping at 230 feet elevation exposed about 75 feet of a 3-foot-wide mineralized zone in 

metavolcanic rock striking N45W, and dipping 60 NE. Four tunnels were driven, the 

longest of which was 180 feet (Capps and Johnson, 1913). In 1953 one tunnel was inaccessible (Mihelich and Wells, 1957). Early assays contained 0.48 to 1.06 oz. Au/ton. Recent sampling (Jansons and others, 1984) of five chip samples from one adit contained 

0.11 ppm to 2.9% Cu, 680 ppm to 0.95% Zn, <0.03 to 0.03 ppm Au, and 0.2 to 13.9 ppm 

Ag. Three grab samples contained 1.14% to 19.3% Cu, 0.95 to 2.25% Zn, 0.15 ppm to 44 

ppm Au, and 0.23 ppm to 34 ppm Ag. 

Production notes:

 None reported from Hoodo. The South Landlocked Bay mine produced 74, 240 lbs. Cu 

(Mihelich and Wells, 1957). 

Reserves:

 Hoodo: inferred reserves of 300 tons @ 1.29% Cu, 0.34% Zn, and 7.97 ppm Ag. South 

Landlocked Bay: inferred reserves of 600 tons @ 4.7% Cu and 2.6% Zn (Jansons and others, 1984). 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1913; Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Mihelich 

and Wells, 1957; Jansons and others, 1984; Nelson and others, 1985; Crowe and others, 

1992; Crowe and others, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

CV021 
Alaska Resource Data File 

Page 44 

Last report date: 6/10/2000 

CV021 
Alaska Resource Data File 

Page 45 

Site name(s): Chisna Consolidated (Buckeye Group) 

Site type: Mine 

ARDF no.: CV022 

Latitude: 60.848 Quadrangle: CV D-7 

Longitude: 146.529 

Location description and accuracy:

 This mine is on the south shore of inner Landlocked Bay, just east of the mouth of 

China Creek. It is in the NE1/4 sec. 7, T. 12 S., R. 7 W., of the Copper River Meridian. 

The location of the site is accurate to within 1000 ft. This mine is shown as site C-69 in 

Jansons and others (1984) and as #16 in Cobb (1972: MF-392). 

Commodities: 

 Main: Cu 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 The deposit is in mafic volcanic rocks of the Tertiary Orca Group (Nelson and others, 

1985). It consists of thin films of chalcopyrite and pyrite along fractures within shear 

zones in the hanging wall of the Landlocked Bay fault (Mihelich and Wells, 1957). 

 Samples contained 0.64% Cu and trace amounts of Au and Ag (Mihelich and Wells, 

1957). Chip samples collected by Jansons and others (1984) contained 0.2% to 0.38% Cu. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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: Yes; small 

CV022 
Alaska Resource Data File 

Page 46 

Site Status: Inactive 

Workings/exploration:

 Two exploratory shafts sunk into shear zone. Samples contained 0.64% Cu and trace 

amounts of Au and Ag (Mihelich and Wells, 1957). Chip samples collected by Jansons 

and others (1984) contained 0.2% to 0.38% Cu. 

Production notes:

 Some ore shipped (Mihelich and Wells, 1957). 

Reserves:

 Inferred reserves of 1,200 tons @ 0.26% Cu and 1,200 tons @ 0.3% Cu (Mihelich and 

Wells, 1957). 

Additional comments:

 Nelson and others (1985) interpret the country rocks as accreted ocean crust. Crowe and 

others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Mihelich and Wells, 1957; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993. 

Primary reference: Mihelich and Wells, 1957 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV022 
Alaska Resource Data File 

Page 47 

Site name(s): Threeman Mining Co.; Billygoat Mountain 

Site type: Prospect 

ARDF no.: CV023 

Latitude: 60.826 Quadrangle: CV D-7 

Longitude: 146.517 

Location description and accuracy:

 This prospect is at an elevation of about 900 feet, about 0.25 mile south of the summit 

of Billygoat Mountain. It is in the SW1/4 sec. 17, T. 12 S., R. 7 W., of the Copper River 

Meridian. The location of the site is accurate to within 1000 ft. This prospect is shown as 

site C-68 by Janson and others (1984) and as #18 by Cobb (1972: MF-392). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 This prospect consists of two sulfide-bearing shear zones in mafic volcanic rocks of the 

Tertiary Orca Group (Nelson and others, 1985). The zones range in width from a few 

inches to five feet and contain lenses and stringer zones of chalcopyrite, pyrite, and pyrrhotite. Samples grade up to 6% Cu (Capps and Johnson, 1913). 

 Capps and Johnson (1913) reported adits at 1150 ft. and 1750 ft. elevation. The lower 

adit was 30 ft. long and the upper adit was 70 ft. long. Jansons and others (1984) reported 

that a grab sample from the 70 ft. adit contained 3.8% Cu, 0.2% Zn, and 7.5 ppm Ag. 

Gossan from the area contained 1.55% Cu, 0.4% Zn, and 13 ppm Ag. 

Alteration:

 Local oxidation of sulfide minerals. 

Age of mineralization:

 Tertiary based on the age of the host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

CV023 
Alaska Resource Data File 

Page 48 

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

24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Capps and Johnson (1913) reported adits at 1150 ft. and 1750 ft. elevation. The lower 

adit was 30 ft. long and the upper adit was 70 ft. long. Jansons and others (1984) reported 

that a grab sample from the 70 ft. adit contained 3.8% Cu, 0.2% Zn, and 7.5 ppm Ag. 

Gossan from the area contained 1.55% Cu, 0.4% Zn, and 13 ppm Ag. 

Production notes:

 

Reserves:

 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1913; Cobb, 1972 (MF-392); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV023 
Alaska Resource Data File 

Page 49 

Site name(s): Banzer 

Site type: Prospect 

ARDF no.: CV024 

Latitude: 60.81 Quadrangle: CV D-7 

Longitude: 146.54 

Location description and accuracy:

 The Banzer prospect is at an elevation of less than 100 feet, about 0.75 mile northeast of 

Graveyard Point at the mouth of Landlocked Bay. It is in the NW1/4 sec. 19, T. 12 S., R. 

7 W., of the Copper River Meridian. The location of the site is accurate to within 2000 ft. 

This site is loc. C- 67 in Jansons and others (1964) and loc. 17 in Cobb (1972: MF-392). 

Commodities: 

 Main: Au,Cu, Pb, Zn 

 Other: 

Ore minerals: Chalcopyrite, galena, pyrite, pyrrhotite 

Gangue minerals: Calcite, quartz 

Geologic description:

 The Banzer prospect consists of sulfide-bearing quartz-calcite veins and of irregular 

clumps and stringers of sulfides in mafic volcanic rocks of the Tertiary Orca Group 

(Nelson and others, 1985; Cobb, 1979: OF 79-973). Sulfides reportedly include chalcopyrite, galena, pyrite, and pyrrhotite. 

 Capps and Johnson (1915) reported that there were two shafts and more than 200 feet of 

stripping completed by 1912. Assays of ore yielded values of 2.42 oz. Au/ton. The prospect could not be located in the early 1980s but assays of two grab samples of float from 

the general area of the prospect contained 0.08 ppm to 0.22 ppm Au, 0.1 ppm to 6.9 ppm 

Ag, and 22 ppm to 0.24% Cu (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rock. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

CV024 
Alaska Resource Data File 

Page 50 

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

24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Capps and Johnson (1915) reported that there were two shafts and more than 200 feet of 

stripping completed by 1912. Assays of ore yielded values of 2.42 oz. Au/ton. The prospect could not be located in the early 1980s but assays of two grab samples of float from 

the general area of the prospect contained 0.08 ppm to 0.22 ppm Au, 0.1 ppm to 6.9 ppm 

Ag, and 22 ppm to 0.24% Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Capps and Johnson, 1915; Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV024 
Alaska Resource Data File 

Page 51 

Site name(s): Jack Bay #3 

Site type: Prospect 

ARDF no.: CV025 

Latitude: 60.97 Quadrangle: CV D-7 

Longitude: 146.45 

Location description and accuracy:

 The Jack Bay #3 prospect is at an elevation of about 2000 feet, approximately 2.2 miles 

north of Silver Lake. It is in the NW1/4 sec. 27, T. 10 S., R. 7 W., of the Copper River 

Meridian. The location is accurate to within 2000 ft. This prospect is shown as C-95 in 

Jansons and others (1984). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Arsenopyrite?, native gold 

Gangue minerals: Limonite, quartz 

Geologic description:

 The area of this prospect is underlain by Upper Cretaceous Valdez Group metasedimentary rocks (Nelson and others, 1985). A well-defined quartz vein, 6 inches to 3 feet thick 

and traceable in outcrops for several hundred yards, cross cuts thick-bedded fine-grained 

graywacke. The vein contains small amounts of arsenopyrite(?) and native gold. 

 Gold mineralization in veins cutting the rocks of the Valdez Group is interpreted by 

Goldfarb and others (1992) to be the result of Tertiary metamorphism. 

Alteration:

 

Age of mineralization:

 Tertiary based on the age of the mineralizing event (Goldfarb and others, 1992). 

Deposit model:

Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; model 36a.1; Goldfarb and others, 1986) 

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

36a.1 

CV025 
Alaska Resource Data File 

Page 52 

Production Status: Undet. 

Site Status: Inactive 

Workings/exploration:

 Surface workings could not be found at this site (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Site is in the Chugach National Forest. 

References:

Jansons and others, 1984; Nelson and others, 1985; Goldfarb and others, 1986; Goldfarb 

and others, 1992; Bliss, 1992. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV025 
Alaska Resource Data File 

Page 53 

Site name(s): Jack Bay #2 

Site type: Prospect 

ARDF no.: CV026 

Latitude: 60.985 Quadrangle: CV D-7 

Longitude: 146.43 

Location description and accuracy:

 The site is at an elevation of 150 feet in a river valley southeast of Jack Bay, and about 

2 miles upstream from the head of the bay. It is in the SW1/4 sec. 23, T. 10 S., R. 7 W., of 

the Copper River Meridian. The location is accurate to within 1000 ft. This prospect is 

shown as C-96 in Jansons and others (1984). 

Commodities: 

 Main: Au, Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 The area of this prospect is underlain by Upper Cretaceous Valdez Group metasedimentary rocks (Nelson and others, 1985). A well-defined, 6-inch- wide, quartz vein in slate 

contains chalcopyrite and pyrrhotite . One grab sample contained 140 ppm Cu and 0.006 

oz. Au/ton (Jansons and others, 1984). 

 Gold mineralization in veins cutting the rocks of the Valdez Group is interpreted by 

Goldfarb and others (1992) to be the result of Tertiary metamorphism. 

Alteration:

 

Age of mineralization:

 Tertiary based on the age of the mineralizing event (Goldfarb and others, 1992). 

Deposit model:

Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; model 36a.1; Goldfarb and others, 1986) 

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

36a.1 

CV026 
Alaska Resource Data File 

Page 54 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Jansons and others, 1984; Nelson and others, 1985; Goldfarb and others, 1986; Goldfarb 

and others, 1992; Bliss, 1992. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV026 
Alaska Resource Data File 

Page 55 

Site name(s): Unnamed (tributary to Jack Bay) 

Site type: Occurrence 

ARDF no.: CV027 

Latitude: 60.981 Quadrangle: CV D-7 

Longitude: 146.371 

Location description and accuracy:

 This placer occurrence is along a river flowing west-northwest into Jack Bay. The 

placer is about 2 miles long, and extends upstream from a point about 3 miles from Jack 

Bay. The map site is at about the midpoint of the placer, in the SW1/4 sec. 19, T. 10 S., 

R. 6 W., of the Copper River Meridian. The location is accurate to within 1000 ft. This 

prospect is shown as P21 in Jansons and others (1984). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 This occurrence consists of small amounts of placer gold in alluvial gravels derived 

from slate and graywacke country rocks of the Valdez Group (Nelson and others, 1985). 

Alteration:

 

Age of mineralization:

 Holocene. 

Deposit model:

Placer gold (Cox and SInger, 1986; model 39a) 

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

39a 

Production Status: None 

Site Status: Inactive 

CV027 
Alaska Resource Data File 

Page 56 

Workings/exploration:

 One 0.1-cubic-yard sample assayed 0.0012 oz Au/cubic yard (Jansons and others, 

1984). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV027 
Alaska Resource Data File 

Page 57 

Site name(s): Fidalgo-Alaska; Schlosser 

Site type: Mine 

ARDF no.: CV028 

Latitude: 60.774 Quadrangle: CV D-7 

Longitude: 146.417 

Location description and accuracy:

 The Fidalgo-Alaska mine is at an elevation of about 500 feet, about 0.8 mile east of the 

mouth of Irish Cove and 0.5 mile north of peak 1430. It is in the NW1/4 sec. 2, T. 13 S., 

R. 7 W., of the Copper River Meridian. The site is accurately located to within 1000 ft. 

This mine is shown as site C-28 in Jansons and others (1984) and site #19 in Cobb (1972: 

MF-392). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Calcite, quartz 

Geologic description:

 This deposit consists of sulfide-bearing quartz-calcite veins in 150- to 300-foot-wide 

shear zones in folded and sheared slate and graywacke of the Tertiary Orca Group 

(Nelson and others, 1985). The sulfide minerals include chalcopyrite, pyrite, pyrrhotite, 

and sphalerite. 

 This mine was developed and productive from 1913 to about 1920 (Cobb, 1979: OF 79-

973). Five adits with the following lengths are reported (Jansons and others, 1984): 1800 

ft., 540 ft., 410 ft., 250 ft., and 50 ft. U.S Bureau of Mines samples from various adit levels and of surface materials contained 0.02% to 19.5% Cu, 150 ppm to 29% Zn, 2 ppm to 

15 ppm Ag, and <0.02 ppm to 5.8 ppm Au. Industry evaluation of the property was undertaken in 1986 (B. Ellis, personal commun., 2000). 

Alteration:

 

Age of mineralization:

 Early Tertiary age based on the age of the host rocks (Nelson and others, 1985). 

Deposit model:

CV028 
Alaska Resource Data File 

Page 58 

Besshi massive sulfide (Cox and Singer, 1986; model 24b) 

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

24b 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 This mine was developed and productive from 1913 to about 1920 (Cobb, 1979: OF 79-

973). Five adits with the following lengths are reported (Jansons and others, 1984): 1800 

ft., 540 ft., 410 ft., 250 ft., and 50 ft. U.S Bureau of Mines samples from various adit levels and of surface materials contained 0.02% to 19.5% Cu, 150 ppm to 29% Zn, 2 ppm to 

15 ppm Ag, and <0.02 ppm to 5.8 ppm Au. Industry evaluation of the property was undertaken in 1986 (B. Ellis, personal commun., 2000). 

Production notes:

 4,160,820 lbs. Cu and 1,384 oz Ag were produced from 21,434 tons of ore. Average 

grade was 10% Cu. 

Reserves:

 Jansons and others (1984) report indicated reserves of 25,625 tons @ 3% Cu and inferred reserves of 224,000 tons @ 3.18% Cu. 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV028 
Alaska Resource Data File 

Page 59 

Site name(s): Dickey Copper Co.; Mason & Gleason Co. 

Site type: Mine 

ARDF no.: CV029 

Latitude: 60.77 Quadrangle: CV D-7 

Longitude: 146.41 

Location description and accuracy:

 This mine is at an elevation of about 500 feet about 1.3 miles east of Irish Cove, and 0.5 

mile southeast of peak 1430. It is in the S1/2 sec. 2, T. 13 S., R. 7 W., of the Copper 

River Meridian. The location is accurate within 2000 ft. The mine is about 0.25 mile east 

of its position shown as site C-65 in Jansons and others (1984) (B. Ellis, personal commun., 2000). 

Commodities: 

 Main: Au, Cu 

 Other: Ag, Co, Pb, Zn 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: Calcite, quartz 

Geologic description:

 This deposit consists of sulfide-bearing quartz-calcite veins in 6- to 8-foot-wide shear 

zones in slate and graywacke of the Tertiary Orca Group (Nelson and others, 1985). The 

sulfide minerals include chalcopyrite, pyrite, pyrrhotite, and sphalerite. 

 The mine was active in the period 1910-1913, but most of the production was in 1917 

(Moffit and Fellows, 1950). Two principal adits at 470 ft. and 540 ft. were connected by 

raises. There reportedly were additional crosscuts and drifts (Moffit and Fellows, 1950). 

Jansons and others (1984) report four adits having the following lengths: 500 ft., 125 ft., 

35 ft. (caved), and 10 ft. There was some industry reevaluation in 1986 (B. Ellis, personal 

commun., 2000). 

 Jansons and others (1984) report the following analyses: Five grab samples from the 

500 ft. adit contained 0.01% to 1.23% Cu, 0.02% to 1.5% Zn, <0.03 ppm to 12.5 ppm Au, 

<0.01 ppm to 28 ppm Ag, and 0.01 to 0.13% Pb. A selected grab sample contained 15.5 

ppm Au. Five grab samples from the 125-ft.-long adit contained 0.3% to 4.3% Cu, 1.43% 

to 14% Zn, <0.03 ppm to 5.25 ppm Au, 25 to 26 ppm Ag, 80 ppm to 0.13% Pb, and 14 

ppm to 740 ppm Co. A grab sample from the crosscut contained 1.6% Cu, 3.1% Zn, 2.8 

ppm Au and 10 ppm Ag. A 262-pound bulk sample from the ore bunkers contained 

8.65% Cu, 9.6% Zn, 0.072 oz. Au/ton, 0.62 oz. Ag/ton, and 0.04% Co. 

CV029 
Alaska Resource Data File 

Page 60 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks (Crowe and others, 1992). 

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: Yes; small 

Site Status: Inactive 

Workings/exploration:

 The mine was active in the period 1910-1913, but most of the production was in 1917 

(Moffit and Fellows, 1950). Two principal adits at 470 ft. and 540 ft. were connected by 

raises. There reportedly were additional cross cuts and drifts (Moffit and Fellows, 1950). 

Jansons and others (1984) report four adits having the following lengths: 500 ft., 125 ft., 

35 ft. (caved), and 10 ft. There was some industry reevaluation in 1986 (B. Ellis, personal 

commun., 2000). 

 Jansons and others (1984) report the following analyses: Five grab samples from the 

500 ft. adit contained 0.01% to 1.23% Cu, 0.02% to 1.5% Zn, <0.03 ppm to 12.5 ppm Au, 

<0.01 ppm to 28 ppm Ag, and 0.01 to 0.13% Pb. A selected grab sample contained 15.5 

ppm Au. Five grab samples from the 125-ft.-long adit contained 0.3% to 4.3% Cu, 1.43% 

to 14% Zn, <0.03 ppm to 5.25 ppm Au, 25 to 26 ppm Ag, 80 ppm to 0.13% Pb, and 14 

ppm to 740 ppm Co. A grab sample from the crosscut contained 1.6% Cu, 3.1% Zn, 2.8 

ppm Au and 10 ppm Ag. A 262-pound bulk sample from the ore bunkers contained 

8.65% Cu, 9.6% Zn, 0.072 oz. Au/ton, 0.62 oz. Ag/ton, and 0.04% Co. 

Production notes:

 29,346 pounds of copper was produced, mainly in 1917. 

Reserves:

 Moffit and Fellows (1950) report that geophysical prospecting suggests that the mines 

in this area (CV028 and CV029) contain additional undiscovered mineral resources. 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Moffit and Fellows, 1950; Jansons and others, 1984; Nelson and others, 1985; Crowe and 

CV029 
Alaska Resource Data File 

Page 61 

others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV029 
Alaska Resource Data File 

Page 62 

Site name(s): Fidalgo Mining Co. (Blackney Prospect) 

Site type: Mine 

ARDF no.: CV030 

Latitude: 60.7951 Quadrangle: CV D-7 

Longitude: 146.2947 

Location description and accuracy:

 This mine is at an elevation of about 500 feet on the south side of Port Fidalgo, about 

1.5 miles northwest of the head of Matthews Bay. It is in the SE1/4 sec. 28, T. 12 S., R. 6 

W., of the Copper River Meridian. The location is accurate to within 500 ft. This mine is 

shown as site #21 in Cobb (1972: MF-392) and C-63 in Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: Ag, Au 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 Most of the ore mined from this deposit was from two lens-shaped bodies of massive 

sulfides. The ore bodies were localized in a shear zone in interbedded volcanic and sedimentary rocks of the Tertiary Orca Group (Nelson and others, 1985; Moffit and Fellows, 

1950). Sulfide minerals include chalcopyrite, pyrite, and pyrrhotite. Underground study 

by Jansons and others (1984) reported three main shear zones up to 30 feet wide and 

traceable for 4000 feet parallel to bedding. 

 Most of the mining activity took place in 1913. The average copper grade was 13%. The 

mine continued to be active until 1920 (Moffit and Fellows, 1950). Workings included 

four adits having the following lengths: 1200 ft., 735 ft., 350 ft., and 175 ft. The following assays are reported by Jansons and others (1984). Four chip samples from the 735-

foot-long adit contained from 175 ppm to 0.23% Cu; nine chip samples across the main 

shear zone in the 1200-foot-long adit contained 0.12% to 1.25% copper; fifteen chip samples from the rest of the adit contained 9 ppm to 0.29% Cu; and three chip samples from 

the 175-foot-long adit contained 300 ppm to 0.73% Cu; three chip samples from the 350-

foot-long adit contained 0.17% to 0.73% Cu. Grab samples from the dump contained 1% 

to 6.3% Cu. Industry evaluation of the property was undertaken in 1986 (B. Ellis, personal commun., 2000). 

CV030 
Alaska Resource Data File 

Page 63 

Alteration:

 

Age of mineralization:

 Tertiary based on the age of the 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: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Most of the mining activity took place in 1913. The average copper grade was 13%. The 

mine continued to be active until 1920 (Moffit and Fellows, 1950). Workings included 

four adits having the following lengths: 1200 ft., 735 ft., 350 ft., and 175 ft. The following assays are reported by Jansons and others (1984). Four chip samples from the 735-

foot-long adit contained from 175 ppm to 0.23% Cu; nine chip samples across the main 

shear zone in the 1200-foot-long adit contained 0.12% to 1.25% copper; fifteen chip samples from the rest of the adit contained 9 ppm to 0.29% Cu; and three chip samples from 

the 175-foot-long adit contained 300 ppm to 0.73% Cu; three chip samples from the 350-

foot-long adit contained 0.17% to 0.73% Cu. Grab samples from the dump contained 1% 

to 6.3% Cu. Industry evaluation of the property was undertaken in 1986 (B. Ellis, personal commun., 2000). 

Production notes:

 360,376 lbs. Cu and 12 oz Ag were recovered from 2,747 tons ore, which also contained as much as 0.05 oz. Au/ton. 

Reserves:

 Inferred Reserves: 45,500 tons @ 0.3% Cu (Jansons and others, 1984). 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Cobb, 1972 (MF-392); Moffit and Fellows, 1950; Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

CV030 
Alaska Resource Data File 

Page 64 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV030 
Alaska Resource Data File 

Page 65 

Site name(s): Red Head #1 

Site type: Prospect 

ARDF no.: CV031 

Latitude: 60.68 Quadrangle: CV C-7 

Longitude: 146.46 

Location description and accuracy:

 This beach placer site represents about two miles of the shore of outer Port Gravina between Red Head and Hell's Hole. The map site is about at the mid-point of the beach 

placer. It is in the E1/2 sec. 4, T. 13 S., R. 8 W., of the Copper River Meridian. The site is 

accurately located to within 2000 ft. This location as site P-18 in Jansons and others 

(1984). 

Commodities: 

 Main: Au 

 Other: Fe, Ti 

Ore minerals: Garnet, ilmenite, magnetite 

Gangue minerals: Beach sand 

Geologic description:

 This prospect consists of heavy minerals, including gold, in wave-formed beach placer 

deposits. Zones of heavy-mineral concentration in the sand can reach three feet thick. One 

such one-foot-thick zone overlying pebbles of felsic intrusive rock, greenstone, graywacke and slate was sampled and contained over 10% garnet (Jansons and others, 1984). 

Two 0.1 cubic-yard samples of the beach sand contained <0.03 ppm to 0.0002 oz. Au/

ton. 

Alteration:

 

Age of mineralization:

 Holocene. 

Deposit model:

Beach placer (Cox and Singer, 1986; model 39a) 

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

39a 

CV031 
Alaska Resource Data File 

Page 66 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Surface workings. Heavy-mineral concentration zones contained over 10% garnet. Two 

0.1 cubic-yard samples of the beach sand contained <0.03 ppm to 0.0002 oz. Au/ton 

(Jansons and others, 1984). 

Production notes:

 Not more than 500 oz. Au produced (Cobb, 1979: OF 79-973). 

Reserves:

 

Additional comments:

 Site is in the Chugach National Forest. 

References:

Cobb, 1979 (OFR 79-973); Jansons and others, 1984. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV031 
Alaska Resource Data File 

Page 67 

Site name(s): Unnamed (Dick Creek drainage) 

Site type: Occurrences 

ARDF no.: CV032 

Latitude: 60.35 Quadrangle: CV B-1 

Longitude: 144.31 

Location description and accuracy:

 This site represents several occurrences in an approximately 15-sq.-mi area in the Dick 

Creek drainage. The roughly circular area is bounded on the south by Bering Lake and on 

the north, west, and east by the drainage divides of the tributaries of Dick Creek. The map 

site is about at the center of the area in the SW1/4, sec. 35, T. 17 S., R. 6 E., of the Copper River Meridian. 

Commodities: 

 Main: Zn 

 Other: Ag, Ba, Cu, Fe, Mo, Pb 

Ore minerals: Barite, pyrite, sphalerite 

Gangue minerals: 

Geologic description:

 These occurrences consist of anomalous metal values in stream sediment from concretionary sandstone of the Tertiary Tokun Formation (Winkler and Plafker, 1991). Stream 

sediment concentrate samples contain >2% Zn (Goldfarb and others, 1992). 

Alteration:

 

Age of mineralization:

 Tertiary, based on probable source of samples. 

Deposit model:

Possibly sedimentary-exhalative Pb-Zn (Cox and Singer, 1986; model 31a) 

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

31a ? 

Production Status: None 

CV032 
Alaska Resource Data File 

Page 68 

Site Status: Inactive 

Workings/exploration:

 None. Investigations of similar geochemical anomalies to the south on Kayak Island 

(Pickthorn and others,1985) failed to find any outcrops containing mineral deposits 

(Goldfarb and others, 1992). 

 Stream sediment concentrate samples contain >2% Zn (Goldfarb and others, 1992). 

Production notes:

 

Reserves:

 

Additional comments:

 This and other geologically similar areas in the Cordova quadrangle warrant further investigation (Nelson and others, 1994). Chugach Alaska Corporation, Anchorage, Alaska 

has control of these lands. 

References:

Pickthorn and others, 1985; Winkler and Plafker, 1991; Goldfarb and others, 1992; Nelson and others, 1994. 

Primary reference: Goldfarb and others, 1992 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV032 
Alaska Resource Data File 

Page 69 

Site name(s): Unnamed (tributary to Port Fidalgo) 

Site type: Occurrence 

ARDF no.: CV033 

Latitude: 60.9 Quadrangle: CV D-6 

Longitude: 146.13 

Location description and accuracy:

 This placer occurrence is about 3.5-4 miles long. It is along the main unnamed river 

flowing into the head of Port Fidalgo, and extends upstream from a point about one mile 

from Port Fidalgo. The map site is at about the midpoint of the placer, in the SW1/4 sec. 

27, T. 11 S., R. 5 W., of the Copper River Meridian. The site location is accurate to 

within 2000 ft. The occurrence is shown as site P-19 in Jansons and others (1984). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: Native gold 

Gangue minerals: 

Geologic description:

 This occurrence consists of small amounts of placer gold in alluvial gravels derived 

from slate and graywacke country rocks of the Valdez Group (Nelson and others, 1985). 

Alteration:

 

Age of mineralization:

 Holocene. 

Deposit model:

Placer gold (Cox and SInger, 1986; model 39a) 

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

39a 

Production Status: None 

Site Status: Inactive 

CV033 
Alaska Resource Data File 

Page 70 

Workings/exploration:

 Site was sampled as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource assessment of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 

1984). Six 0.1-cubic-yard samples assayed 0.0003 to 0.002 oz. Au/cubic yard (Jansons 

and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV033 
Alaska Resource Data File 

Page 71 

Site name(s): Dead Creek (prospect) 

Site type: Prospect 

ARDF no.: CV034 

Latitude: 60.9 Quadrangle: CV D-6 

Longitude: 145.95 

Location description and accuracy:

 The Dead Creek prospect is at an elevation of about 3400 feet above the north forks of 

Dead Creek. It is in the S1/2 sec. 21, T. 11 S., R. 4 W., of the Copper River Meridian. 

The site is accurately located to within 2000 ft. This prospect is shown as site C-56 in 

Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Azurite, chalcopyrite, malachite, sphalerite 

Gangue minerals: Quartz 

Geologic description:

 The Dead Creek prospect is in Upper Cretaceous Valdez Group metasedimentary rocks 

(Nelson and others, 1985). The deposit consists of a 60-foot-wide shear zone containing 

a 10-foot-wide gossan that carries sulfide-bearing quartz veinlets (Jansons and others, 

1984). Ore minerals include azurite, chalcopyrite, malachite, and sphalerite. 

 Jansons and others (1984) report a 60-foot-long adit and one open pit. A chip sample 

contained: 91 ppm Cu, 0.8 ppm Ag, 140 ppm Zn; one grab sample contained: 8.9% Cu, 

2.7 oz Ag/ton, and 0.31% Zn. 

Alteration:

 Oxidation of iron and copper minerals. 

Age of mineralization:

 

Deposit model:

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

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

22c ? 

CV034 
Alaska Resource Data File 

Page 72 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Jansons and others (1984) report a 60-foot-long adit and one open pit. A chip sample 

contained: 91 ppm Cu, 0.8 ppm Ag, 140 ppm Zn; one grab sample contained: 8.9% Cu, 

2.7 oz Ag/ton, and 0.31% Zn. 

Production notes:

 

Reserves:

 

Additional comments:

 Site examined as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource evaluation of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 1984). 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV034 
Alaska Resource Data File 

Page 73 

Site name(s): Dead Creek (placer) 

Site type: Occurrence 

ARDF no.: CV035 

Latitude: 60.87 Quadrangle: CV D-6 

Longitude: 145.96 

Location description and accuracy:

 The Dead Creek alluvial placer extends upstream for about 3.5 miles from a point about 

1.5 miles above its confluence with the Gravina River. The map site is at the midpoint of 

the placer, in the NW1/4 sec. 33, T. 11 S., R. 4 W., of the Copper River Meridian. This 

site is shown as location P-17 in Jansons and others (1984). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 Alluvial deposits along Dead Creek contain clasts of slate, graywacke, phyllite, greenstone, and andalusite schist derived from the underlying Upper Cretaceous Valdez Group 

(Nelson and others, 1984; Jansons and others, 1984). 

 Five 0.1-cubic-yard samples contained 0.28 ppm to 0.0007 oz Au/cubic yard and 1% 

garnet in the concentrate (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Holocene. 

Deposit model:

Stream placer (Cox and SInger, 1986; model 39a) 

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

39a 

Production Status: None 

CV035 
Alaska Resource Data File 

Page 74 

Site Status: Inactive 

Workings/exploration:

 Five 0.1-cubic-yard samples contained 0.28 ppm to 0.0007 oz Au/cubic yard and 1% 

garnet in the concentrate (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Site examined as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource evaluation of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 1984). 

Site is the Chugach National Forest. 

References:

Jansons and others, 1984; Nelson and others, 1984. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV035 
Alaska Resource Data File 

Page 75 

Site name(s): Unnamed (head of Dead Creek) 

Site type: Occurrence 

ARDF no.: CV036 

Latitude: 60.91 Quadrangle: CV D-5 

Longitude: 145.87 

Location description and accuracy:

 This occurrence is at an elevation of about 2400 feet at the northeastern head of Dead 

Creek, near the toe of an unnamed glacier. It is in the W1/2 sec. 13, T. 11 S., R. 4 W., of 

the Copper River Meridian. The accuracy of the location is within 2000 ft. This occurrence is shown as site C-57 in Jansons and other (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Malachite, pyrite, sphalerite 

Gangue minerals: 

Geologic description:

 The country rocks at this occurrence are slate and graywacke of the Upper Cretaceous 

Valdez Group (Nelson and others, 1985). Jansons and others (1984) describe a 4-footwide shear zone in the slate and graywacke that contins a foot-wide zone of pyrite, 

spalerite, and malachite. One chip sample contained 41 ppm Zn, and 7 ppm Cu, and a 

grab sample contained 1.23% Zn and 0.17% Cu. 

Alteration:

 Minor 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 

CV036 
Alaska Resource Data File 

Page 76 

Workings/exploration:

 Site examined as part of a U.S. Bureau of Mines and U.S.G.S. mineral evaluation of the 

Chugach National Forest. 

 One chip sample contained 41 ppm Zn, and 7 ppm Cu, and a grab sample contained 

1.23% Zn and 0.17% Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV036 
Alaska Resource Data File 

Page 77 

Site name(s): Unnamed (west of Wortmanns Glacier) 

Site type: Occurrence 

ARDF no.: CV037 

Latitude: 60.99 Quadrangle: CV D-5 

Longitude: 145.84 

Location description and accuracy:

 This site is at an elevation of about 3000 feet, approximately 3.5 miles west of Wortmanns Glacier and 2.2 miles west-northwest of peak 6082. It is in the NE1/4 sec. 24, T. 

10 S., R. 4 W., of the Copper River Meridian. The location of the site is accurate to 

within 2000 ft. This occurrence is shown as site C-58 in Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this occurrence are metavolcanic rocks (greenstone) and metasedimentary rocks of the Upper Cretaceous Valdez Group. These rocks are part of a 65-milelong belt of volcanic rocks having potential for volcanogenic massive sulfide deposits, 

extending to the Copper River (Nelson and others, 1984; 1985). The occurrence is 

marked by a seven -foot-wide, red-stained zone of slate in contact with greenstone. It 

consists of chalcopyrite in quartz veins and as disseminations in the greenstone. Four chip 

samples contained 120 ppm to 1.3% Cu (Jansons and others, 1984). 

Alteration:

 Oxidation. 

Age of mineralization:

 Late Cretaceous or younger. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

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

CV037 
Alaska Resource Data File 

Page 78 

24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site was sampled as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource assessment of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 

1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985; Crowe and 

others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV037 
Alaska Resource Data File 

Page 79 

Site name(s): Unnamed (east tributary of Wortmanns Glacier) 

Site type: Occurrence 

ARDF no.: CV038 

Latitude: 60.95 Quadrangle: CV D-5 

Longitude: 145.65 

Location description and accuracy:

 This occurrence is at an elevation of 4000 feet above an east tributary to Wortmanns 

Glacier and 1.4 miles due south of peak 6145. It is in the NW1/4 sec. 6, T. 11 S., R. 2 W., 

of the Copper River Meridian. The location of the site is accurate to within 2000 ft. The 

occurrence is shown as site C-97 in Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Chalcopyrite, pyrite, sphalerite 

Gangue minerals: 

Geologic description:

 The country rocks at this occurrence are metavolcanic rocks (greenstone) and metasedimentary rocks of the Upper Cretaceous Valdez Group. These rocks are part of a 65-milelong belt of volcanic rocks having potential for volcanogenic massive sulfide deposits, 

extending to the Copper River (Nelson and others, 1984; 1985). The ore minerals at this 

site presumably are chaclopyrite, pyrite, and sphalerite, but their mode of occurrence has 

not been made public. One grab sample contained 1.0% Zn, 0.1 to 0.5% Cu, and 0.5 ppm 

to 3 ppm Ag (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Late Cretaceous based on the age of the 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 

CV038 
Alaska Resource Data File 

Page 80 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site was sampled as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource assessment of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 

1984). 

 One grab sample contained 1.0% Zn, 0.1 to 0.5% Cu, and 0.5 ppm to 3 ppm Ag 

(Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985; Crowe and 

others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV038 
Alaska Resource Data File 

Page 81 

Site name(s): Whalen and Nelson 

Site type: Prospect 

ARDF no.: CV039 

Latitude: 60.81 Quadrangle: CV D-6 

Longitude: 146.146 

Location description and accuracy:

 This prospect is at an elevation of about 900 feet about 1.5 miles east-southeast of the 

head of Whalen Bay. It is in the SE1/4 sec. 20, T. 12 S., R. 5 W., of the Copper River Meridian. The location is accurate within 1000 ft. This prospect is site C-59 in Jansons and 

others (1984) and #22 in Cobb (1972: MF-392). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 The country rock at this prospect is graywacke and slate of the Tertiary Orca Group 

(Nelson and others, 1985). Grant and Higgins (1909) reported a resistant band of nonslaty 

rock containing irregular stringers and disseminated grains of chalcopyrite and pyrrhotite. 

The band is up to 12 ft. wide, averages 2-4 feet wide, and is traceable for a 'considerable' 

distance. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV039 
Alaska Resource Data File 

Page 82 

Site Status: Inactive 

Workings/exploration:

 One adit and surface stripping reported by Grant and Higgins (1909). Site could not be 

found in the 1980s (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. 

 The prospect is in the Chugach National Forest. 

References:

Cobb, 1972 (MF-392); Grant and Higgins, 1909; Jansons and others, 1984; Nelson and 

others, 1985; Crowe and others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Grant and Higgins, 1909 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV039 
Alaska Resource Data File 

Page 83 

Site name(s): Unnamed (lower part of south fork of Gravina River) 

Site type: Occurrence 

ARDF no.: CV040 

Latitude: 60.82 Quadrangle: CV D-6 

Longitude: 145.89 

Location description and accuracy:

 This occurrence is at about 200 ft. elevation on the lower part of the south fork of the 

Gravina River. It is in the NW1/4 sec. 23, T. 12 S., R. 4 W., of the Copper River Meridian. Accuracy of the location is within 2000 ft. Location corresponds to site C-55 in Jansons and others (1984). 

Commodities: 

 Main: W 

 Other: 

Ore minerals: Chalcopyrite, pyrite, scheelite 

Gangue minerals: Quartz 

Geologic description:

 This site is on a gravel bar in the Gravina River. Float samples from the area include altered and silicified felsic intrusive rocks containing chalcopyrite, pyrite, and scheelite. 

Analysis of one sample yielded 245 ppm W (Jansons and others, 1984). 

Alteration:

 Silicification. 

Age of mineralization:

 

Deposit model:

 

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

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

CV040 
Alaska Resource Data File 

Page 84 

 Area examined by the U.S. Bureau of Mines as part of a mineral evaluation of the 

Chugach National Forest. Analysis of one sample yielded 245 ppm W (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Occurrence is on Chugach National Forest land. 

References:

Jansons and others, 1984. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV040 
Alaska Resource Data File 

Page 85 

Site name(s): Ellis (Boone and Ibeck #1 and #2) 

Site type: Prospects 

ARDF no.: CV041 

Latitude: 60.67 Quadrangle: CV C-6 

Longitude: 146.03 

Location description and accuracy:

 This site represents two prospects in a 2.5-mile-long linear area along the bluff above 

the northwest shore of Sheep Bay. The map site is at the approximate midpoint between 

the prospects, in the NW1/4 sec. 11, T. 14 S., R. 5 W., of the Copper River Meridian. 

This site includes both sites C-52 and C-53 of Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: Ag 

Ore minerals: Chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 The prospect consists of chalcopyrite-bearing quartz veins in the Tertiary Orca Group 

turbidites along the contact of the Sheep Bay pluton (Jansons and others, 1984; Nelson 

and others, 1985). The Sheep Bay pluton has been radiometrically dated at about 51 Ma 

(Winkler and Plafker, 1981). Three analyzed samples from Jansons and others' (1984) 

location C-52 contained 26-115 ppm Cu. Eleven additional samples from the contact area 

contained 13 ppm to 0.14% Cu and <0.1 ppm to 8.5 ppm silver. 

Alteration:

 Contact metamorphism. 

Age of mineralization:

 The age of mineralization is probably 51 Ma based on the age of the Sheep Bay pluton. 

Deposit model:

Copper skarn ? 

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

 

CV041 
Alaska Resource Data File 

Page 86 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Area examined by the U.S. Bureau of Mines as part of a mineral evaluation of the 

Chugach National Forest. Three analyzed samples from location C-52 contained 26-115 

ppm Cu. Eleven additional samples from the contact area contained 13 ppm to 0.14% Cu 

and <0.1 ppm to 8.5 ppm silver (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Winkler and Plafker, 1981; Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV041 
Alaska Resource Data File 

Page 87 

Site name(s): Unnamed (near mouth of Simpson Creek) 

Site type: Occurrence 

ARDF no.: CV042 

Latitude: 60.693 Quadrangle: CV C-5 

Longitude: 145.839 

Location description and accuracy:

 This occurrence is at an elevation of about 100 feet at the head of Simpson Bay near the 

mouth of Simpson Creek. It is in the SE1/4 sec. 36, T. 13 S., R. 4 W., of the Copper River 

Meridian. The location is accurate to within 1000 ft. This location is site C-51 in Jansons 

and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 This occurrence consists of sulfide-bearing stream-sediment float samples of slate. Sulfide minerals are chalcopyrite, pyrite, pyrrhotite, and sphalerite (Jansons and others, 

1984). Analyses of two grab samples contained 140 ppm and 1.6% Zn, and 35 ppm and 

0.16% Cu. 

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:

CV042 
Alaska Resource Data File 

Page 88 

 Area examined by the U.S. Bureau of Mines as part of a mineral evaluation of the 

Chugach National Forest. Analyses of two grab samples contained 140 ppm and 1.6% 

Zn, and 35 ppm and 0.16% Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Occurrence is on Chugach Regional Corporation land. 

References:

Jansons and others, 1984. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV042 
Alaska Resource Data File 

Page 89 

Site name(s): Wilson Point 

Site type: Prospect 

ARDF no.: CV043 

Latitude: 60.66 Quadrangle: CV C-5 

Longitude: 145.67 

Location description and accuracy:

 This occurrence is on the north shore of Nelson Bay, about 1000 feet northeast of 

VABM Bluff. It is in the W1/2 sec. 13, T. 14 S., R. 3 W., of the Copper River Meridian. 

Site location accurate to within 0.5 mile. Site corresponds to loc. 24 in Cobb (1972: MF392). It also corresponds to loc. C-28 in Jansons and others (1984), but their plotted position of the site is in error. 

Commodities: 

 Main: Ag, Au 

 Other: 

Ore minerals: 

Gangue minerals: Quartz 

Geologic description:

 The Wilson Point prospect is in graywacke and slate of the Tertiary Orca Group 

(Nelson and others, 1985). Schrader (1900) reported numerous quartz stringers having assay values of 1.25 oz. Au/ton and 3 oz. Ag/ton. Jansons and others (1984) report a fourfoot-wide, 20-foot-long quartz-cemented graywacke breccia. Analyses of their samples 

showed <0.03 ppm to 0.05 ppm Au and <0.1 ppm Ag. However, their site location does 

not agree with that of earlier reports. 

Alteration:

 

Age of mineralization:

 Tertiary based on the age of the mineralizing event (Goldfarb and others, 1992). 

Deposit model:

Chugach-type low-sulfide Au-quartz veins (Bliss, 1992; Goldfarb and others, 1986) 

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

 

CV043 
Alaska Resource Data File 

Page 90 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Minor surface sampling (Schrader, 1900). Analyses of recent samples showed <0.03 

ppm to 0.05 ppm Au and <0.1 ppm Ag (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Schrader, 1900; Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Jansons and others, 

1984; Goldfarb and others, 1986; Goldfarb and others, 1992; Bliss, 1992. 

Primary reference: Cobb, 1979 (OF 79-973) 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV043 
Alaska Resource Data File 

Page 91 

Site name(s): Hawkins Island #1 

Site type: Occurrence 

ARDF no.: CV044 

Latitude: 60.555 Quadrangle: CV C-5 

Longitude: 145.829 

Location description and accuracy:

 This occurrence is at an elevation of about 200 feet on the east side of Mud Bay on 

Hawkins Island. It is in the W1/2 Sec. 19, T. 15 S., R. 3 W., of the Copper River Meridian. Accuracy of the location is to within 1000 ft. Location corresponds to site C-45 in 

Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Pyrite 

Gangue minerals: 

Geologic description:

 This occurrence consists of pyrite in slate and graywacke of the Tertiary Orca Group. 

The slate contains up to 15% pyrite. A single grab sample collected in 1980 contained 36 

ppm Cu (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks (Nelson and others, 1985). 

Deposit model:

 

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

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

CV044 
Alaska Resource Data File 

Page 92 

 The slate contains up to 15% pyrite. A single grab sample collected in 1980 contained 

36 ppm Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV044 
Alaska Resource Data File 

Page 93 

Site name(s): Flynn and Scott 

Site type: Prospect 

ARDF no.: CV045 

Latitude: 60.516 Quadrangle: CV C-6 

Longitude: 146.101 

Location description and accuracy:

 This prospect is located at about the midpoint of the south shore of Canoe Passage on 

Hawkins Island. Site is located in the NE1/4 sec. 4, T 16 S., R 5 W., of the Copper River 

Meridian and is accurate to within 600 ft. Shown as site C-48 by Jansons and others 

(1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Pyrrhotite 

Gangue minerals: 

Geologic description:

 This prospect consists of pyrrhotite disseminated in greenstone interbedded in volcanic 

and sedimentary rocks of the Tertiary Orca Group (Nelson and others, 1985). Four samples collected in the early 1980s contained 25-475 ppm Cu (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Tertiary based on the age of the Orca Group volcanic rocks (Nelson and others, 1985). 

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 

CV045 
Alaska Resource Data File 

Page 94 

Workings/exploration:

 Jansons and others (1984) report a 30 ft. open cut. Four samples collected in the early 

1980s contained 25-475 ppm Cu. 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV045 
Alaska Resource Data File 

Page 95 

Site name(s): Kelley and MacCormac 

Site type: Prospect 

ARDF no.: CV046 

Latitude: 60.511 Quadrangle: CV C-6 

Longitude: 146.091 

Location description and accuracy:

 This prospect is near the mouth of Canyon Creek on the south shore of Canoe Passage 

on Hawkins Island. The map site is in the W1/2 sec. 3, T 16 S., R 5 W., of the Copper 

River Meridian. The location is accurate to within 600 ft. Shown as site C-49 by Jansons 

and others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 This prospect reportedly is in a 3-foot-wide shear zone in slate of the Tertiary Orca 

Group (Jansons and others, 1984). Volcanic rocks crop out near the prospect (Nelson and 

others, 1985). Examination of the area by the U.S. Bureau of Mines in the early 1980s 

showed no obvious signs of mineralization. Three samples contained 24-140 ppm Cu 

(Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Tertiary based on the age of the Orca Group (Nelson and others, 1985). 

Deposit model:

Possibly Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

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

24a ? 

Production Status: None 

CV046 
Alaska Resource Data File 

Page 96 

Site Status: Inactive 

Workings/exploration:

 Jansons and others (1984) reported a 15 ft. open cut. Three samples contained 24-140 

ppm Cu. 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV046 
Alaska Resource Data File 

Page 97 

Site name(s): Cordova Copper Co.; Fleming Spit 

Site type: Prospect 

ARDF no.: CV047 

Latitude: 60.567 Quadrangle: CV C-5 

Longitude: 145.7232 

Location description and accuracy:

 This prospect is at the 500 ft. elevation in Fleming Creek about 2 miles north-northeast 

of the city of Cordova. It is in the E1/2 sec. 15, T. 15 S., R. 3 W., of the Copper River 

Meridian. Location is accurate to within 500 ft. 

This site is shown as location C-34 by Jansons and others (1984) and loc. 23 by Cobb 

(1972: MF-392; 1979: OF 79-973). 

Commodities: 

 Main: Cu 

 Other: Au 

Ore minerals: Bornite, chalcocite, chalcopyrite, cuprite, malachite, native copper, gold 

Gangue minerals: Calcite, chlorite, epidote, quartz 

Geologic description:

 This prospect consists of base-and precious-metal deposits in Tertary Orca Group volcanic and sedimentary rocks (Nelson and others, 1985). The volcanic rocks in the prospect area are reported to be amygdaloidal basalts (Grant, 1910). The deposits comprise 

impregnations and replacements of sulfides, oxides, and native metals in country rock, 

scattered veins of quartz or sulfides, and irregular masses of sulfide. 

Alteration:

 Surface alteration & extensive oxidation at depth (Grant, 1910). 

Age of mineralization:

 Tertiary based on the age of the host rocks (Nelson and others, 1985). 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a). See also Crowe and others 

(1992). 

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

CV047 
Alaska Resource Data File 

Page 98 

24a 

Production Status: No 

Site Status: Inactive 

Workings/exploration:

 12 adits examined in 1980 (Jansons and other, 1984). The main activity took place in 

1905-1909 and 1917 (Cobb, 1979: OF 79-973). 

Production notes:

 

Reserves:

 Inferred reserves of 17,600 tons @ 0.64% Cu are reported by Jansons and others (1984). 

Additional comments:

 No production, although a sample of native copper from this site was displayed in 1909 

at the Alaska-Yukon Exposition (Grant, 1910). 

 Prospect site could not be located in 1986 during industry exploration (B. Ellis, personal commun., 2000). Site is on State of Alaska land. 

References:

Grant, 1910; Cobb, 1972 (MF-392); Cobb, 1979 (OFR 79-973); Jansons and others, 

1984; Nelson and others, 1985; Crowe and others, 1992. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV047 
Alaska Resource Data File 

Page 99 

Site name(s): Snyder Falls Creek 

Site type: Occurrence 

ARDF no.: CV048 

Latitude: 60.644 Quadrangle: CV C-5 

Longitude: 145.581 

Location description and accuracy:

 Site is at an elevation of about 2000 feet near the head of Snyder Falls Creek. It is in 

the NE1/4 sec. 21, T. 14 S., R. 2 W., of the Copper River Meridian. Location of site is accurate to within 1000 ft. Location is the same as site C-24 of Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 This occurrence consists of small veinlets of chalcopyrite and of disseminated pyrite 

and pyrrhotite in greenstone 'pods' in sedimentary rocks of the Orca Group (Jansons and 

others, 1984; Nelson and others, 1985). These pods probably represent localized mafic 

flows or structurally disrupted flows. Ten grab samples analyzed from the area contained 

from 29 ppm to 3.35% Cu (Jansons, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the 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 

CV048 
Alaska Resource Data File 

Page 100 

Site Status: Inactive 

Workings/exploration:

 Site was visited as part of a regional mineral assessment of the Chugach National Forest 

(Nelson and others, 1984; 1985; Jansons and others, 1984). 

 Ten grab samples analyzed from the area contained from 29 ppm to 3.35% Cu (Jansons, 

1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV048 
Alaska Resource Data File 

Page 101 

Site name(s): Head-Of-The-Bay (Cordova - Tacoma Copper Co.) 

Site type: Prospect 

ARDF no.: CV049 

Latitude: 60.663 Quadrangle: CV C-5 

Longitude: 145.551 

Location description and accuracy:

 This prospect is at an elevation of about 1500 feet near the head of Wesley Falls Creek. 

It is in the SE1/4 sec. 10, T 14 S., R. 2 W., of the Copper River Meridian. Location is accurate to within 1000 ft. Location corresponds to site C-21 of Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: Ag, Zn 

Ore minerals: Chalcopyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 This prospect consists of chalcopyrite and pyrrhotite in fracture zones and as disseminations in the wallrocks in interbedded graywacke, slate, and volcanic rocks of the Tertiary 

Orca Group (Nelson and others, 1985). Four shear zones 1 to 5 feet wide cut the volcanic 

rocks. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on age of host rock (Nelson and others, 1985). 

Deposit model:

 

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

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

CV049 
Alaska Resource Data File 

Page 102 

 One adit observed in 1980 (Jansons and others, 1984) and reported by Grant and Higgins (1910). Two adits noted during industry exploration activity in 1986. The two adits 

are approximately 1/4 mile apart (B. Ellis, personal commun., 2000). Sampling and 

analyses during the 1980s by the U.S. Bureau of Mines (Jansons and others, 1984) resulted in the following values: Six chip samples contained 650 ppm to 4.05% Cu, 3.5 to 

310 ppm Zn, and <0.1 to 1.8 ppm Ag. Two grab samples contained 4.6% and 5.2% Cu, 

360 ppm and 0.15% Zn, and 8.8 ppm and 11 ppm Ag. 

Production notes:

 

Reserves:

 Inferred reserves of 800 tons @ 0.6% Cu (Jansons and others, 1984). 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Grant and Higgins, 1910; Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV049 
Alaska Resource Data File 

Page 103 

Site name(s): Celadonia Group 

Site type: Prospect 

ARDF no.: CV050 

Latitude: 60.656 Quadrangle: CV C-5 

Longitude: 145.513 

Location description and accuracy:

 This prospect is at an elevation of about 2400 feet about 2 miles east of Snyder Mountain. It is in the W1/2 sec. 13, T. 14 S., R. 2 W., of the Copper River Meridian. Location 

of site accurate to within 1000 ft. This prospect corresponds to location C-20 of Jansons 

and others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Bornite, malachite 

Gangue minerals: 

Geologic description:

 This prospect is hosted in interbedded volcanic and sedimentary rocks of the Tertiary 

Orca Group (Nelson and others, 1985). The deposit consists of three shear zones in volcanic rock that contain bornite and malachite (Jansons and others, 1984). 

Alteration:

 Oxidation of copper sulfide. 

Age of mineralization:

 Tertiary based on the age of the host rock. 

Deposit model:

Possibly Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

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

24a ? 

Production Status: None 

CV050 
Alaska Resource Data File 

Page 104 

Site Status: Inactive 

Workings/exploration:

 Three open cuts reported (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Site is in the Chugach National Forest. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV050 
Alaska Resource Data File 

Page 105 

Site name(s): Unnamed (east edge of Woodworth Glacier) 

Site type: Occurrence 

ARDF no.: CV051 

Latitude: 60.94 Quadrangle: CV D-4 

Longitude: 145.42 

Location description and accuracy:

 This occurrence is at an elevation of 2600 feet at the east edge of Woodworth Glacier. 

It is in the NW1/4 sec. 4, T. 11 S., R. 1 W., of the Copper River Meridian. The location of 

the site is accurate to within 2000 ft. The occurrence is shown as site C-13 in Jansons and 

others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rocks at this occurrence are metavolcanic rocks (greenstone) and metasedimentary rocks of the Upper Cretaceous Valdez Group. These rocks are part of a 65-milelong belt of volcanic rocks having potential for volcanogenic massive sulfide deposits, 

extending to the Copper River (Nelson and others, 1984; 1985). The occurrence consists 

of small amounts of chalcopyrite in quartz veinlets in two shear zones in the greenstone. 

The shear zones are 1 to 4 feet wide. Three grab samples contained 0.12% to 1.02% Cu 

(Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Late Cretaceous based on the age of the 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 

CV051 
Alaska Resource Data File 

Page 106 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site was sampled as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource assessment of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 

1984). 

 Three grab samples contained 0.12% to 1.02% Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Crowe and others (1992; 1993) and Sainsbury (1993) discuss the genesis of the volcanogenic massive sulfide deposits in this area. Occurrence is on State of Alaska land. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985; Crowe and 

others, 1992; Crowe and others, 1993; Sainsbury, 1993. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV051 
Alaska Resource Data File 

Page 107 

Site name(s): Unnamed (northwest of Scott Glacier) 

Site type: Occurrence 

ARDF no.: CV052 

Latitude: 60.675 Quadrangle: CV C-4 

Longitude: 145.288 

Location description and accuracy:

 This occurrence is at an elevation of about 1800 feet at the northwest edge of Scott Glacier. It is in the center of sec. 7, T. 14 S., R. 1 E., of the Copper River Meridian. Accuracy of the location is within 1000 ft. This site is location C-15 of Jansons and others 

(1984). 

Commodities: 

 Main: Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 This occurrence consists of talus blocks of slate and greenstone at the base of ironstained outcrop. The slate contains chalcopyrite, pyrite, and sphalerite. The greenstone 

contains chalcopyrite and pyrrhotite (Jansons and others, 1984). Host rocks mapped as 

part of the Tertiary Orca Group (Nelson and others, 1985). Three grab samples contained 

from 210 ppm to 0.77% Zn. 

Alteration:

 

Age of mineralization:

 

Deposit model:

 

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

 

Production Status: None 

Site Status: Inactive 

CV052 
Alaska Resource Data File 

Page 108 

Workings/exploration:

 Three grab samples contained from 210 ppm to 0.77% Zn. 

Production notes:

 

Reserves:

 

Additional comments:

 Site is in the Chugach National Forest. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV052 
Alaska Resource Data File 

Page 109 

Site name(s): Ibach; The Sure Thing 1906 

Site type: Prospect 

ARDF no.: CV053 

Latitude: 60.657 Quadrangle: CV C-4 

Longitude: 145.386 

Location description and accuracy:

 This prospect is at an elevation of about 2100 feet on the east wall of Ibeck Creek approximately 2.5 miles north of the toe of Scott Glacier. It is in the N1/2 sec. 15, T. 14 S., 

R. 1 W., of the Copper River Meridian. Location accurate to within 1000 ft. Location 

corresponds to site C-17 in Jansons and others (1984). 

Commodities: 

 Main: Ag, Cu, Pb, Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 This prospect is hosted in a unit of the Tertiary Orca Group consisting mostly of tabular 

or lenticular bodies of mafic volcanic rocks, including pillowed or massive flows, breccia 

and dikes (Nelson and others, 1985). Grant and Higgins (1910) reported a vein 12-20 feet 

wide and two miles long in the area. Jansons and others (1984) reported a 14-foot-wide 

shear zone in volcanic rock containing small lenses of pyrite, pyrrhotite, chalcopyrite, and 

sphalerite. U.S. Bureau of Mines sampling and analysis (Jansons and others, 1984) in the 

area yielded the following results from five chip samples: 4 ppm to 3.4% Cu, 40 ppm to 

1.95% Zn, 10 ppm to 0.26% Pb, and 3.6 to 11 ppm Ag. Four grab samples contained 

0.52 to 5.5% Cu, 215 ppm to 2.4% Zn, 30 ppm to 0.28% Pb, and 0.4 ppm to 14 ppm Ag. 

Alteration:

 Surface oxidation. 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

CV053 
Alaska Resource Data File 

Page 110 

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

24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Workings consist of an 80-foot-long adit. U.S. Bureau of Mines sampling and analysis 

(Jansons and others, 1984) in the area yielded the following results from five chip samples: 4 ppm to 3.4% Cu, 40 ppm to 1.95% Zn, 10 ppm to 0.26% Pb, and 3.6 to 11 ppm 

Ag. Four grab samples contained 0.52 to 5.5% Cu, 215 ppm to 2.4% Zn, 30 ppm to 

0.28% Pb, and 0.4 ppm to 14 ppm Ag. 

Production notes:

 

Reserves:

 Inferred reserves are estimated at 3,800 tons @ 2.8% Cu, 2.2% Zn, and 10 ppm Ag 

(Garret, 1971). 

Additional comments:

 Ibeck Creek is (mis)named for Joe (?) Ibach, an early prospector in the area. Chugach 

Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Grant and Higgins, 1910; Garret, 1971; Jansons and others, 1984; Nelson and others, 

1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV053 
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Page 111 

Site name(s): Unnamed (west of lower Ibeck Creek) 

Site type: Occurrence 

ARDF no.: CV054 

Latitude: 60.63 Quadrangle: CV C-4 

Longitude: 145.437 

Location description and accuracy:

 This occurrence is at an elevation of about 2200 feet about a mile west of lower Ibeck 

Creek and 1/4 mile north of peak 2522. It is in the NE1/4 sec. 29, T. 14 S., R. 1 W., of the 

Copper River Meridian. Location accurate to within 1000 ft. Location corresponds to site 

C-18 in Jansons and others (1984). 

Commodities: 

 Main: Zn 

 Other: 

Ore minerals: Pyrite 

Gangue minerals: 

Geologic description:

 The occurrence is hosted in a unit of the Tertiary Orca Group consisting mostly of tabular or lenticular bodies of mafic volcanic rocks, including pillowed or massive flows, 

breccia and dikes (Nelson and others, 1985). Rocks in the area are iron-stained and contain disseminated pyrite. One grab sample contained 0.25% Zn (Jansons and others, 

1984). 

Alteration:

 Oxidation of sulfides. 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

Possibly Cyprus massive sulfide (Cox and Singer, 1986; model 24a) 

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

24a ? 

CV054 
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Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site examined during U.S. Bureau of Mines mineral evaluation of the Chugach National 

Forest (Jansons and others, 1984). 

 One grab sample contained 0.25% Zn (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV054 
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Page 113 

Site name(s): Unnamed (southwest of lower Scott Glacier) 

Site type: Occurrence 

ARDF no.: CV055 

Latitude: 60.62 Quadrangle: CV C-4 

Longitude: 145.319 

Location description and accuracy:

 This occurrence is at an elevation of about 1000 feet approximately 0.5 mile southeast 

of lower Scott Glacier. It is in the SE1/4 sec. 25, T. 14 S., R. 1 W., of the Copper River 

Meridian. Site accurate to within 1000 ft. Site is location C-16 of Jansons and others 

(1984). 

Commodities: 

 Main: Cu, Zn 

 Other: Ag 

Ore minerals: Bornite, chalcopyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 This occurrence consists of a 1000 ft. x 200 ft. outcrop area containing several shear 

zones up to several feet wide in slate and graywacke of the Tertiary Orca Group (Nelson 

and others, 1985). Sulfides, including bornite, chalcopyrite, pyrrhotite, and sphalerite, occur as lenses and disseminations both in the country rocks and in the shear zones 

(Jansons and others, 1984). Samples collected and analyzed by the U.S. Bureau of Mines 

showed the following results. Seven chip samples contained 39 ppm to 2.3% Cu, 68 ppm 

to 5.9% Zn, and <0.1 ppm to 29 ppm Ag. Seven grab samples contained 36 ppm to 14.8% 

Cu, 58 ppm to 8.7% Zn, and 0.1 ppm to 8 oz. Ag/ton. 

Alteration:

 

Age of mineralization:

 

Deposit model:

 

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

 

Production Status: None 

CV055 
Alaska Resource Data File 

Page 114 

Site Status: Inactive 

Workings/exploration:

 Samples collected and analyzed by the U.S. Bureau of Mines showed the following results. Seven chip samples contained 39 ppm to 2.3% Cu, 68 ppm to 5.9% Zn, and <0.1 

ppm to 29 ppm Ag. Seven grab samples contained 36 ppm to 14.8% Cu, 58 ppm to 8.7% 

Zn, and 0.1 ppm to 8 oz. Ag/ton (Jansons and others, 1984). 

Production notes:

 

Reserves:

 Inferred reserves of 19,300 tons @ 1.06% Cu, 2.06% Zn, and 13.6 ppm Ag (Jansons 

and others, 1984). 

Additional comments:

 Occurrence is in the Chugach National Forest. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV055 
Alaska Resource Data File 

Page 115 

Site name(s): Unnamed (north of lower Childs Glacier) 

Site type: Occurrence 

ARDF no.: CV056 

Latitude: 60.685 Quadrangle: CV C-3 

Longitude: 144.837 

Location description and accuracy:

 This occurrence is at an elevation of about 1200 feet at the north edge of lower Childs 

Glacier, about one mile south of Mt. O'Neel. It is in SE1/4 sec. 3, T. 14 S., R. 3 E., of the 

Copper River Meridian. Site is accurately located to within 1000 ft. This location as site 

C-10 of Jansons and others (1984). 

Commodities: 

 Main: Cu, Zn 

 Other: 

Ore minerals: Chalcopyrite, pyrite 

Gangue minerals: 

Geologic description:

 This occurrence consists of pyrite and chalcopyrite disseminated in interbedded slate 

and greenstone of the Upper Cretaceous Valdez Group (Nelson and others, 1985). Four 

grab samples collected and analyzed by the U.S. Bureau of Mines contained 34 ppm to 

0.64% Cu, and 110 ppm to 0.17% Zn (Jansons and others, 1984). This site is at the eastern end of a 65-mile-long belt of similar rocks that to the west host massive sulfide deposits (Nelson and others, 1984; 1985; Crowe and others, 1992). 

Alteration:

 

Age of mineralization:

 Late Cretaceous based on the age of the 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 

CV056 
Alaska Resource Data File 

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Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site examined during U.S. Bureau of Mines and U.S.G.S. mineral resource assessment 

of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 1984). 

 Four grab samples collected and analyzed by the U.S. Bureau of Mines contained 34 

ppm to 0.64% Cu, and 110 ppm to 0.17% Zn (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985; Crowe and 

others, 1992. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV056 
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Page 117 

Site name(s): Unnamed (north wall Grinnell Glacier) 

Site type: Occurrence 

ARDF no.: CV057 

Latitude: 60.727 Quadrangle: CV C-3 

Longitude: 144.781 

Location description and accuracy:

 This occurrence is at an elevation of about 2200 feet on the north wall of Grinnell Glacier. It is in SE1/4 sec. 24, T. 13 S., R. 3 E., of the Copper River Meridian. Site is accurately located to within 1000 ft. This location is site C-11 of Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: Zn 

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

Gangue minerals: Quartz, sericite 

Geologic description:

 This occurrence consists of sulfide-bearing shear zones 2 to 10 feet wide in slate and 

greenstone of the Upper Cretaceous Valdez Group (Nelson and others, 1985). Ore minerals include arsenopyrite, chalcopyrite, malachite, pyrite, and pyrrhotite. Four chip samples 

collected and analyzed by the U.S. Bureau of Mines contained 255 ppm to 0.13% Cu; 

nine grab samples contained 13 ppm to 0.19% Cu (Jansons and others, 1984). This site is 

at the eastern end of a 65-mile-long belt of similar rocks that to the west host massive sulfide deposits (Nelson and others, 1984; 1985; Crowe and others, 1992). 

 A massive-sulfide boulder found on the south side of Grinnel Glacier contained 30% 

pyrite, 3% chalcopyrite, 1% sphalerite in a quartz-sericite gangue (Kodosky and Teller, 

1989). Assays of selected samples ranged from 1100 ppm to 1.8% Cu. 

Alteration:

 Local alteration of copper minerals. 

Age of mineralization:

 Late Cretaceous based on the age of the host rocks. 

Deposit model:

Besshi massive sulfide (Cox and Singer, 1986; model 24b) 

CV057 
Alaska Resource Data File 

Page 118 

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

24b 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site examined during U.S. Bureau of Mines and U.S.G.S. mineral resource assessment 

of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 1984). Site 

also examined in 1988 by Kodosky and Teller (1989) for the Chugach Alaska Corporation. Their evaluation indicated some potential for copper mineralization. 

 Four chip samples collected and analyzed by the U.S. Bureau of Mines contained 255 

ppm to 0.13% Cu; nine grab samples contained 13 ppm to 0.19% Cu (Jansons and others, 

1984). A massive-sulfide boulder found on the south side of Grinnel Glacier contained 

30% pyrite, 3% chalcopyrite, 1% sphalerite in a quartz-sericite gangue. Assays of selected samples ranged from 1100 ppm to 1.8% Cu. 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985; Kodosky 

and Teller, 1989; Crowe and others, 1992. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV057 
Alaska Resource Data File 

Page 119 

Site name(s): Unnamed (north wall of Shiels Glacier) 

Site type: Occurrence 

ARDF no.: CV058 

Latitude: 60.88 Quadrangle: CV D-3 

Longitude: 144.76 

Location description and accuracy:

 This occurrence site is at an elevation of 2700 feet on the north wall of Shiels Glacier. 

It is in the SE1/4 sec. 30, T. 11 S., R. 4 E., of the Copper River Meridian. The location of 

the site is accurate to within 2000 ft. The occurrence is shown as site C-12 in Jansons and 

others (1984). 

Commodities: 

 Main: Pb, Zn 

 Other: Ag, Au 

Ore minerals: Galena, pyrite, pyrrhotite, sphalerite 

Gangue minerals: 

Geologic description:

 The country rocks at this occurrence are metavolcanic rocks (greenstone) and metasedimentary rocks of the Upper Cretaceous Valdez Group. These rocks are part of a 65-milelong belt of volcanic rocks having potential for volcanogenic massive sulfide deposits, 

extending to the Copper River (Nelson and others, 1984; 1985). The metavolcanic rocks 

contain disseminations and lenses of pyrite and pyrrhotite, and disseminations of galena 

and sphalerite. Two grab samples from talus contained 0.03 ppm and 5.0 ppm Au, 34 

ppm and 0.92% Zn, 47 ppm and 0.20% Pb, and 5.4 ppm and 11.2 ppm Ag (Jansons and 

others, 1984). Pan-concentrate samples from the area contained 1000 ppm Au, 1000 ppm 

Ag, 1% As, and 3000 ppm Pb (Goldfarb and others, 1984). Kodosky and Teller (1989) 

report that the average gold value for pan-concentrate samples in this drainage is 5791 

ppb. The average assays of two rock samples are 858 ppb and 1348 ppb Au, and 1750 

ppm and 1038 ppm Pb. 

Alteration:

 

Age of mineralization:

 Late Cretaceous based on the age of the host rocks. 

CV058 
Alaska Resource Data File 

Page 120 

Deposit model:

Cyprus massive sulfide (Cox and Singer, 1986; model 24a) and/or Chugach-type lowsulfide gold-quartz veins (Bliss, 1992; model 36a.1) 

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

24a and/or 36a.1 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site was sampled as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource assessment of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 

1984). Site was also examined by private industry in 1988 (Kodosky and Teller,1989). 

Kodosky and Teller (1989) concluded that the drainage area had a very high probability of 

containing a gold-bearing quartz system. Their average gold value for pan-concentrate 

samples in this drainage is 5791 ppb. The average assays of two rock samples are 858 ppb 

and 1348 ppb Au, and 1750 ppm and 1038 ppm Pb. 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Goldfarb and others, 1984; Jansons and others, 1984; Nelson and others, 1984; Nelson 

and others, 1985; Kodosky and Teller, 1989. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV058 
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Page 121 

Site name(s): Unnamed (below McCune/Heney Glaciers) 

Site type: Occurrences 

ARDF no.: CV059 

Latitude: 60.92 Quadrangle: CV D-3 

Longitude: 144.75 

Location description and accuracy:

 This site includes a placer occurrence and a lode occurrence. The placer occurrence includes the drainage below McCune Glacier and the southern outwash area of Heney Glacier. The placer covers an area of about 3 square miles. The map site is at about the midpoint of the placer, in the NE1/4 sec. 18, T. 11 S., R. 4 E., of the Copper River Meridian; 

the location is accurate to within 2000 ft. This site corresponds to loc. P-5 in Jansons and 

others (1984), which presumably represents both the placer and the lode occurrences. 

Commodities: 

 Main: Au, Pb 

 Other: 

Ore minerals: Galena, pyrrhotite 

Gangue minerals: Quartz 

Geologic description:

 The placer occurrence consists of small amounts of gold in alluvial and colluvial gravels derived from underlying metasedimentary rocks of the Upper Cretaceous Valdez 

Group (Nelson and others, 1985), and from the dunes near the terminus of Heney Glacier 

(Kodosky and Teller, 1989). A 0.1- cubic-yard sample assayed 0.0006 oz. Au/cubic yard 

(Jansons and others, 1984). In addition to the placer occurrence, Jansons and others 

(1984) describe a shear zone in Valdez Group metasedimentary and metavolcanic rocks 

in this area that contains galena and pyrrhotite. Analysis of a sample from the shear zone 

contained 0.14% Pb. 

Alteration:

 

Age of mineralization:

 Placer Au is Holocene. Sulfide mineralization is Late Cretaceous or younger, based on 

the age of the host rocks. 

Deposit model:

CV059 
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Page 122 

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

Singer, 1986; model 24a) 

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

39a and 24a 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site was sampled as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource assessment of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 

1984). The area near the terminus of Heney Glacier was examined by industry in 1988 

for placer gold (Kodosky and Teller, 1989). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985; Kodosky 

and Teller, 1989. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV059 
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Page 123 

Site name(s): Unnamed (tributary to Copper River) 

Site type: Occurrence 

ARDF no.: CV060 

Latitude: 60.89 Quadrangle: CV D-2 

Longitude: 144.71 

Location description and accuracy:

 This placer occurrence is along a creek between Shiels Glacier and the Copper River. 

The placer extends 1.5 miles upstream from the Copper River. The map site is at the midpoint of the placer, in the S1/2 sec. 21, T. 11 S., R. 4 E., of the Copper River Meridian. 

The location of the site is accurate to within 2000 ft. The occurrence is shown as site P-4 

in Jansons and others (1984). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 This occurrence consists of small amounts of placer gold in alluvial and colluvial gravels derived from underlying metasedimentary rocks of the Upper Cretaceous Valdez 

Group (Nelson and others, 1985). A 0.1-cubic-yard sample contained 0.0009 oz. Au/cubic 

yard (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Holocene. 

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 

CV060 
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Page 124 

Site Status: Inactive 

Workings/exploration:

 Site was sampled as part of a U.S. Bureau of Mines and U.S.G.S. mineral resource assessment of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 

1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV060 
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Page 125 

Site name(s): Unnamed (below Shiels Glacier) 

Site type: Occurrence 

ARDF no.: CV061 

Latitude: 60.88 Quadrangle: CV D-2 

Longitude: 144.69 

Location description and accuracy:

 This placer is in the main drainage from Shiels Glacier. The map site is at the midpoint 

of the placer, which extends for about 2 miles upstream from Nels Miller Slough. It is in 

the SE1/4 sec. 28, T. 11 S., R. 4 E., of the Copper River Meridian. The location of the site 

is accurate to within 2000 ft. The occurrence is shown as site P-3 in Jansons and others 

(1984). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 This occurrence consists of small amounts of placer gold in alluvial and colluvial gravels derived from underlying metasedimentary rocks of the Upper Cretaceous Valdez 

Group (Nelson and others, 1985). A 0.1-cubic-yard sample assayed 0.0007 oz. Au/cubic 

yard (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Holocene. 

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 

CV061 
Alaska Resource Data File 

Page 126 

Site Status: Inactive 

Workings/exploration:

 Exploration by industry in 1988 concluded that recent deglaciation and the steep gradient along Shiels Creek preclude the existence of a significant gold placer deposit 

(Kodosky and Teller, 1989). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1984; Kodosky and Teller, 1989. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV061 
Alaska Resource Data File 

Page 127 

Site name(s): Standard Mines 

Site type: Prospect 

ARDF no.: CV062 

Latitude: 60.95 Quadrangle: CV D-2 

Longitude: 144.38 

Location description and accuracy:

 This prospect is at an elevation of about 4500 ft. on a ridge 1.7 miles south of VABM 

Eagle. It is in the NE1/4 sec. 5, T. 11 S., R. 6 E., of the Copper River Meridian. The location of the site is accurate to within 2000 ft. This prospect is shown as #30 in Cobb (1972: 

MF-392). 

Commodities: 

 Main: Au, Pb 

 Other: 

Ore minerals: Chalcopyrite, galena, pyrite 

Gangue minerals: Quartz 

Geologic description:

 The country rock at this prospect is schist of the Upper Cretaceous Valdez Group 

(Moffit, 1914). The deposit consists of a quartz vein about one foot thick containing chalcopyrite, galena, and pyrite. Assays indicate 2.9 oz. Au/ton or higher (Moffit, 1914). 

Alteration:

 

Age of mineralization:

 Late Cretaceous or younger. 

Deposit model:

 

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

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

CV062 
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Page 128 

 Moffit (1914) reports a shallow vertical shaft at the prospect. 

Production notes:

 

Reserves:

 

Additional comments:

 Located on lands within Wrangell-St. Elias National Park. 

References:

Moffit, 1914; Cobb, 1972 (MF-392). 

Primary reference: Moffit, 1914 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV062 
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Page 129 

Site name(s): Unnamed (Bremner River aboveThreemile Canyon) 

Site type: Prospect 

ARDF no.: CV063 

Latitude: 61 Quadrangle: CV D-1 

Longitude: 144.15 

Location description and accuracy:

 This mile-long placer prospect is along the Bremner River just upstream from 

Threemile Canyon. The map site is at the midpoint of the placer, in SW1/4 sec. 15, T. 10 

S., R. 7 E., of the Copper River Meridian. The location of the site is accurate to within 

2000 ft. The prospect is shown as #31 in Cobb (1972: MF-392). 

Commodities: 

 Main: Au 

 Other: 

Ore minerals: 

Gangue minerals: 

Geologic description:

 This prospect consists of small amounts of placer gold in alluvium derived from Upper 

Cretaceous Valdez Group metamorphic rocks (Winkler and Plafker (1981). According to 

Moffit (1914), high benches of glacial outwash behind a ridge of shale formerly dammed 

the river and formed a lake, producing a site of gold deposition. The gold is too fine and 

too sparse to have interested prospectors. 

Alteration:

 

Age of mineralization:

 Holocene. 

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. 

CV063 
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Page 130 

Site Status: Inactive 

Workings/exploration:

 Unknown. 

Production notes:

 

Reserves:

 

Additional comments:

 Located on lands within Wrangell-St. Elias National Park. 

References:

Moffit, 1914; Cobb, 1972 (MF 392); Winkler and Plafker, 1981. 

Primary reference: Moffit, 1914 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV063 
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Page 131 

Site name(s): Unnamed (north bank of upper Sheep Creek) 

Site type: Occurrence 

ARDF no.: CV064 

Latitude: 60.567 Quadrangle: CV C-2 

Longitude: 144.725 

Location description and accuracy:

 This occurrence is at an elevation of about 300 feet on the north bank of upper Sheep 

Creek. It is in the SE1/4 sec. 17, T. 15 S., R. 4 E., of the Copper River Meridian. Location of the site is accurate to within 1000 ft. Site is location C-4 in Jansons and others 

(1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Chalcopyrite, malachite 

Gangue minerals: 

Geologic description:

 Site is described as an outcrop of Tertiary Orca Group slate (Nelson and others, 1985) 

stained with malachite. One 6-inch-wide shear zone contains chalcopyrite. Analysis of 

one grab sample indicated 0.51% Cu (Jansons and others, 1984). 

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:

 Site examined during U.S. Bureau of Mines and U.S.G.S. mineral resource assessment 

CV064 
Alaska Resource Data File 

Page 132 

of the Chugach National Forest (Jansons and others, 1984; Nelson and others, 1984). 

 Analysis of one grab sample indicated 0.51% Cu (Jansons and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV064 
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Page 133 

Site name(s): Unnamed (south-central Hinchinbrook Island) 

Site type: Occurrence 

ARDF no.: CV065 

Latitude: 60.352 Quadrangle: CV B-7 

Longitude: 146.425 

Location description and accuracy:

 This site is located on Hinchinbrook Island and occupies an area of approximately 0.25 

sq. mi. in the center of sec. 34, T. 17 S., R. 7 W., of the Copper River Meridian. The center of the area is at approximately the 1500 ft elevation. Location is accurate to within 600 

ft. Shown as site C-98 in Jansons and others (1984). 

Commodities: 

 Main: Mn 

 Other: Ba, Fe, Zn 

Ore minerals: Barite, bementite, birressite, rancieite, todorokite 

Gangue minerals: 

Geologic description:

 This occurrence consists of a 30 x 90 ft. outcrop area of manganese-bearing nodules and 

encrustations in an interbedded sequence of sedimentary and volcanic rocks of the Tertiary Orca Group (Nelson and others, 1985). The occurrence is interpreted as a sedimentary 

manganese deposit developed on the sea floor (Goodfellow and others, 1984). Selected 

samples contained 29-35% Mn, 14% Fe, 6700 ppm Ba, 3400 ppm Zn (Goodfellow and 

others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rocks. 

Deposit model:

Volcanogenic Mn (Cox and Singer, 1986; model 24c) 

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

24c 

CV065 
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Page 134 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Site discovered during regional geologic mapping (Nelson and others, 1985). Minor interest by industry during exploration activity in mid-1980s. 

 Selected samples contained 29-35% Mn, 14% Fe, 6700 ppm Ba, 3400 ppm Zn 

(Goodfellow and others, 1984). 

Production notes:

 

Reserves:

 

Additional comments:

 Location is within the Chugach National Forest. 

References:

Goodfellow and others, 1984; Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Goodfellow and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV065 
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Site name(s): Tansey 2 

Site type: Prospect 

ARDF no.: CV066 

Latitude: 60.464 Quadrangle: CV B-6 

Longitude: 145.944 

Location description and accuracy:

 The prospect is at an elevation of less than 100 feet at the southwest tip of the Heney 

Range peninsula. It is in the SW1/4 sec. 21, T. 16 S., R. 4 W., of the Copper River Meridian. Site is SE of VABM Camp and is accurately located to within 1000 ft. Shown as site 

C-43 by Jansons and others (1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: 

Gangue minerals: Quartz 

Geologic description:

 This prospect reportedly consists of quartz veinlets in Orca Group slate (Jansons and 

others, 1984). One grab sample collected in the early 1980s contained 42 ppm Cu. 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the host rock (Nelson and others, 1985). 

Deposit model:

 

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

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 Open cut reported by Jansons and others (1984). However, site could not be found durCV066 
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ing exploration by private industry in 1986 (Bill Ellis, personal commun., Jan. 2000). 

 One grab sample collected in the early 1980s contained 42 ppm Cu. 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

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Site name(s): Unnamed (near Hartney Bay) 

Site type: Occurrence 

ARDF no.: CV067 

Latitude: 60.49 Quadrangle: CV B-6 

Longitude: 145.9 

Location description and accuracy:

 This site is at an elevation of about 100 feet, approximately 1/4 mile south of Big Point 

in Hartney Bay. It is in the SE1/4 sec. 10, T. 16 S., R. 4 W., of the Copper River Meridian 

and is accurately located to within 2000 ft. Shown as site C-40 by Jansons and others 

(1984). 

Commodities: 

 Main: Cu 

 Other: 

Ore minerals: Pyrite, pyrrhotite 

Gangue minerals: 

Geologic description:

 This occurrence consists of disseminated pyrite and pyrrhotite hosted in Orca Group 

volcanic rocks (Jansons and others, 1984). 

Alteration:

 

Age of mineralization:

 Probably Tertiary based on the age of the Orca Group volcanic rocks (Nelson and others, 1985). 

Deposit model:

 

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

 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

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 Unknown. This site could not be found in 1980 or 1986 (Jansons and others, 1984; B. 

Ellis, personal commun., 2000). 

Production notes:

 

Reserves:

 

Additional comments:

 Chugach Alaska Corporation, Anchorage, Alaska has control of these lands. 

References:

Jansons and others, 1984; Nelson and others, 1985. 

Primary reference: Jansons and others, 1984 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

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Site name(s): Unnamed [on Pete Dahl (Copper Sands) Island] 

Site type: Occurrence 

ARDF no.: CV068 

Latitude: 60.35 Quadrangle: CV B-5 

Longitude: 145.54 

Location description and accuracy:

 This site is located on a barrier island in the Copper River delta. Older maps refer to this 

island as Pete Dahl Island (Reimnitz and Plafker, 1976); current maps name this island 

Copper Sands. The map site is in the SW1/4 sec. 35, T. 17 S., R. 2 W., of the Copper 

River Meridian. Accuracy of the location is within 1 mile. 

Commodities: 

 Main: Au 

 Other: Cr, Fe, Mn, Ni, Ti, V, Zr 

Ore minerals: Native gold 

Gangue minerals: Beach sand 

Geologic description:

 This occurrence consists of widespread beach and flood plain black sand deposits containing heavy minerals. Input of sands is from the Copper River where the supply of material is high. Reimnitz and Plafker (1976) report that the sands extend offshore to depths 

up to 50 m. They also report that the beaches of the Copper River delta contain as much 

gold and other heavy minerals as beaches that have been mined elsewhere along this 

coast. One analysis from a 5-cm-thick surface layer from the west end of the island contained 0.25 ppm Au (Reimnitz and Plafker, 1976). 

Alteration:

 

Age of mineralization:

 Recent beach sands. 

Deposit model:

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

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

39a 

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Production Status: None 

Site Status: Inactive 

Workings/exploration:

 One analysis from a 5-cm-thick surface layer from the west end of the island contained 

0.25 ppm Au (Reimnitz and Plafker, 1976). 

Production notes:

 

Reserves:

 

Additional comments:

 Islands in the Copper River delta change shape considerably due to storms and sedimentation supply. The islands are in the Chugach National Forest. 

References:

Reimnitz and Plafker, 1976. 

Primary reference: Reimnitz and Plafker, 1976 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

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Site name(s): McKinley Lake mine, Rilley Group, Lucky Strike prospect, 

Bear Creek prospect (McKinley Lake gold camp) 

Site type: Mine and prospects 

ARDF no.: CV069 

Latitude: 60.4807 Quadrangle: CV B-4 

Longitude: 145.193 

Location description and accuracy:

 This location includes the McKinley Lake mine, the Rilley Group prospect , the Lucky 

Strike prospect , and the Bear Creek prospect. The map site is the center of an approximately 0.75 square mile area north of McKinley Lake that contains these mines and prospects. It is in S1/2 sec. 15, T. 16 S., R. 1 E., of the Copper River Meridian. Accuracy of 

location is within 400 ft. The site corresponds to localities C-6 to C-9 in Jansons and others (1984), and locality 29 in Cobb (1972: MF-392). 

Commodities: 

 Main: Au 

 Other: Ag, As, Sb 

Ore minerals: Native gold, pyrite, stibnite 

Gangue minerals: Quartz 

Geologic description:

 The deposits at this site consist of reportedly auriferous quartz veins in Tertary Orca 

Group sedimentary rocks adjacent to the 51.6 Ma McKinley Lake pluton (Winkler and 

Plafker, 1981). Schrader and Spencer (1901) report that the veins both parallel and crosscut the bedding in the host rock. They also report large amounts of visible gold in the 

quartz. Haney and Jansons (1987) report three major quartz veins and quartz stockworks 

from a few inches up to 40 ft. thick. They note that the veins are parallel to bedding in the 

host rock. Minerals noted by them include pyrite, stibnite, and gold. Analyses of samples 

from two adits at McKinley Lake contained 0.005 to 0.107 oz. Au/ton and 0.2 oz. Ag/ton. 

Samples from the mill site contained 25-50 ppm Au and 2.6 ppm Ag (Jansons and others, 

1984). Goldfarb and others (1992) report anomalous values of Ag, As, and Au in concentrate samples from streams draining the nearby granite stock. They consider the granite to 

be the heat source for the mineralizing event. 

Alteration:

 

CV069 
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Age of mineralization:

 Tertiary (51 Ma) based on the age of the mineralizing event (Goldfarb and others, 

1992). 

Deposit model:

Chugach-type low sulfide Au-quartz veins (Bliss, 1992; Goldfarb and others, 1986) 

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

 

Production Status: Yes; small 

Site Status: Inactive 

Workings/exploration:

 Five adits ranging from 18-569 ft.; one shaft and numerous open cuts. Ball mill on site. 

 Analyses of samples from two adits at McKinley Lake contained 0.005 to 0.107 oz. Au/

ton and 0.2 oz. Ag/ton. Samples from the mill site contained 25-50 ppm Au and 2.6 ppm 

Ag (Jansons and others, 1984). Goldfarb and others (1992) report anomalous values of 

Ag, As, and Au in concentrate samples from streams draining the nearby granite stock. 

Production notes:

 16 oz. Au and 9 oz. Ag apparently produced in the early 1900s (Schrader and Spencer, 

1901). 

Reserves:

 

Additional comments:

 Site is in Chugach National Forest. 

References:

Schrader and Spencer, 1901; Cobb, 1972 (MF-392); Winkler and Plafker, 1981; Jansons 

and others, 1984; Goldfarb and others, 1986; Goldfarb and others, 1992; Haney and Jansons, 1987; Bliss, 1992. 

Primary reference: Haney and Jansons, 1987 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV069 
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Site name(s): Unnamed (Don Miller Hills area) 

Site type: Occurrences 

ARDF no.: CV070 

Latitude: 60.24 Quadrangle: CV A-1 

Longitude: 144.33 

Location description and accuracy:

 This site represents several occurrences in an approximately 30 square mile area in the 

Don Miller Hills. The roughly arcuate area is bounded on the east by the Bering River, on 

the west by the Katalla River, on the north by Bering Lake, and on the south by Redwood 

and Burls Creeks. The map site is about at the center of this area, on Peak 2067 in the 

pass between Rope Creek and Split Creek drainages. It is in the N1/2 sec. 10, T 19 S, R 6 

E, of the Copper River Meridian. 

Commodities: 

 Main: Zn 

 Other: Ag, Ba, Cu, Fe, Mo, Pb 

Ore minerals: Barite, pyrite, sphalerite 

Gangue minerals: 

Geologic description:

 These occurrences consist of anomalous metal values in geochemical samples from 

drainages in the area. The metals are thought to come from organic-rich shales in continental clastic rocks of Eocene to Miocene age (Goldfarb and others, 1992), intercalated 

with marine mafic volcanic rocks in the Poule Creek Formation (Winkler and Plafker, 

1991). Heavy mineral concentrates contain abundant barite, pyrite, and sphalerite. Analyses of concentrates yielded values of up to 5000 ppm Ba, >2% Zn, and 10%-30% Fe. 

Anomalous values of Ag, Cu, Mo, and Pb were also detected (Goldfarb and others, 1992). 

Alteration:

 

Age of mineralization:

 The occurrences are considered to be Eocene to Miocene based on the age of the host 

rocks. 

Deposit model:

Possibly sedimentary-exhalative Pb-Zn (Cox and Singer, 1986; model 31a) 

CV070 
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Deposit model number (After Cox and Singer, 1986 or Bliss, 1992):

31a ? 

Production Status: None 

Site Status: Inactive 

Workings/exploration:

 None, however, investigations of similar geochemical anomalies to the south on Kayak 

Island (Pickthorn and others, 1985) failed to find any outcrops containing minerals that 

could be the source of the anomalous metal values in the geochemical samples (Goldfarb 

and others, 1992). 

 Heavy mineral concentrates contain abundant barite, pyrite, and sphalerite. Analyses of 

concentrates yielded values of up to 5000 ppm Ba, >2% Zn, and 10%-30% Fe. Anomalous values of Ag, Cu, Mo, and Pb were also detected (Goldfarb and others, 1992). 

Production notes:

 

Reserves:

 

Additional comments:

 This and other geologically similar areas in the Cordova quadrangle warrant further investigation (Nelson and others, 1994). Chugach Alaska Corporation, Anchorage, Alaska 

has control of these lands. 

References:

Pickthorn and others, 1985; Winkler and Plafker, 1991; Goldfarb and others, 1992; Nelson and others, 1994. 

Primary reference: Goldfarb and others, 1992 

Reporter(s): S.W. Nelson, Anchorage, AK 

Last report date: 6/10/2000 

CV070 
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 References 

Bliss, J.D., 1992, Grade and tonnage model of Chugach-type low-sulfide Au-quartz veins: U.S. Geological Survey Bulletin 2004, p. 44-46. 

Capps, S.R., and Johnson, B.L., 1913, Mineral deposits of the Ellamar district: U.S. Geological Survey Bulletin 

542, p. 86-124. 

Capps, S.R., and Johnson, B.L., 1915, The Ellamar district, Alaska: U.S. Geological Survey Bulletin 605, 125 p. 

Cobb, E.H., 1972, Metallic mineral resources map of the Cordova quadrangle, Alaska: U.S. Geological Survey 

Miscellaneous Field Studies Map MF-392, scale 1:250,000. 

Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Cordova quadragle, Alaska: U.S. Geological Survey Open-file Report OF 79-973, 74 

p. 

Cox, D.P. and Singer, D.A., eds.,1986, Mineral Deposit Models: U.S. Geological Survey Bulletin 1693, 379 p. 

Crowe, D.E., Nelson, S.W., Brown, P.E., Shanks III, W.C., and Valley, J.W., 1992, Geology and geochemistry of 

volcanogenic massive sulfide deposits and related igneous rocks, Prince William Sound, south-central 

Alaska: Economic Geology, v. 87, p. 1722-1746. 

Crowe, D.E., Nelson, S.W., Brown, P.E., Shanks III, W.C., and Valley, J.W., 1993, Geology and geochemistry of 

volcanogenic massive sulfide deposits and related igneous rocks, Prince William Sound, south-central 

Alaska-A reply: Economic Geology, v. 88, p. 1285-1288. 

Garrett, C.R., Jr., 1971, Report of mineral examination-Hartney Bay: U.S. Department of Agriculture, Forest 

Service, Alaska Region, R10-26, 14 p. 

Goldfarb, R.J., Case, J.E., Plafker, George, and Winkler, G.R., 1992, Maps showing areas of potential for mineral 

resources in the Cordova and Middleton Island 1 x 3 degree quadrangles, southern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map, MF-2190, scale 1:250,000. 

Goldfarb, R.J., Leach, D.L., Miller, M.L., and Pickthorn, W.J., 1986, Geology, metamorphic setting, and genetic 

constraints of epigenetic lode-gold mineralization within the Cretaceous Valdez Group, south-central 

Alaska, in Keppie, J.D., Boyle, R.W., and Haynes, S.J., eds., Turbidite-hosted gold deposits: Geological 

Association of Canada Special Paper 32, p. 87-105. 

Goldfarb, R.J., Nelson, S.W., Dumoulin, J.D., Hoffman, J.D., Trip, R.B., Smaglik, Suzanne, and Folger, Peter, 

1984, Data report and statistical summary for samples of moraine and stream-sediment, nonmagnetic, 

heavy-mineral concentrates, and rock samples from the Chugach National Forest, Alaska: U.S. Geological Survey Open-file Report 84-355, 29 p. (plus unnumbered tables). 

Goodfellow, R., Nelson, S.W., Bouse, R.M., and Koski, R.A., 1984, The geologic setting and composition of a 

newly discovered manganese deposit on Hinchinbrook Island, Alaska: U.S. Geological Survey Open-file 

Report OF 84-671, 50 p. 

Grant, U.S., 1906, Copper and other mineral resources of Prince William Sound: U.S. Geological Survey Bulletin 

284, p. 78-87. 

Grant, U.S., 1910, Mining and prospecting on Prince William Sound in 1909: U.S. Geological Survey Bulletin 

442, p. 164-165. 

Grant, U.S., and Higgins, D.F., 1909, Copper mining and prospecting on Prince William Sound: U.S. Geological 

References 
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Survey Bulletin 379, p. 87-96. 

Grant, U.S., and Higgins, D.F., 1910, Reconnaissance of the geology and mineral resources of Prince William 

Sound, Alaska: U.S. Geological Survey Bulletin 443, 89 p. 

Haney, J.M., and Jansons, Uldis, 1987, Geology of the McKinley Lake gold area, Chugach National Forest, 

south-central Alaska: U.S. Bureau of Mines Open-file Report, OF 32-87, 40 p. 

Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, south-central Alaska: U.S. Bureau of Mines Open-File Report MLA 5-84, 36 p. 

Kodosky, Larry, and Teller, Steve, 1989, Economic mineral assessment of Chugach Alaska Corporation properties and selected land in the Copper, Bremner, and Tasnuna River area: unpublished report prepared for 

Chugach Alaska Corporation, Anchorage, Alaska, 116 p. 

Mihelich, M., and Wells, R.R., 1957, Copper mines and prospects adjacent to Landlocked Bay, Prince William 

Sound, Alaska: U.S. Bureau of Mines Report of Investigations RI 5320, 21 p. 

Moffit, F.H., 1914, Geology of the Hanagita-Bremner region, Alaska: U.S. Geological Survey Bulletin 576, 56 p. 

Moffit, F.H., 1954, Geology of the Prince William Sound region, Alaska: U.S. Geological Survey Bulletin 989-E, 

p. 225-310. 

Moffit, F.H., and Fellows, R.E., 1950, Copper deposits of the Prince William Sound district, Alaska: U.S. Geological Survey Bulletin 963-B, p. 47-80. 

Nelson, S.W., Dumoulin, J.A., and Miller, M.L., 1985, Geologic map of the Chugach National Forest, Alaska: U.

S. Geological Survey Miscellaneous Field Studies Map MF-1645-B, 16p., 1 pl., scale 1:250,000. 

Nelson, S.W., Miller, M.L., Barnes, D.F., Dumoulin, J.A., Goldfarb, R.J., Koski, R.A., Mull, C.G., Pickthorn, W.

J., Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral resource potential of 

the Chugach National Forest, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF1645-A, 24p., 1 pl., scale 1:250,000. 

Nelson, S.W., Miller, M.L., Goldfarb, R.J., Snee, L.W., Sherman, G.E., Roe, C.H., and Balen, M.D., 1994, Mineral resource assessment of the Chugach National Forest Special Study area in northern Prince William 

Sound, Alaska: U.S. Geological Survey Open-file Report OF 94-272, 18 p. 

Pickthorn, W.J., Goldfarb, R.J., O’Leary, R.M., Sutley, S.J., and Weaver, S.C., 1985, Kayak Island-Analysis of a 

geochemical anomaly, in Bartsch-Winkler, Susan, and Reed, K.M., eds., The U.S. Geological Survey in 

Alaska-Accomplishments during 1983: U.S. Geological Survey Circular 945, p. 82-83. 

Reimnitz, Erk, and Plafker, George, 1976, Marine gold placers along the Gulf of Alaska margin: U.S. Geological 

Survey Bulletin 1415, 16 p. 

Sainsbury, C.L., 1993, Geology and geochemistry of volcanogenic massive sulfide deposits and related igneous 

rocks, Prince William Sound, south-central Alaska-A discussion: Economic Geology, v. 88, p. 1284-

1285. 

Schrader, F.C., 1900, A reconnaissance of a part of Prince William Sound and the Copper River district, Alaska, 

in 1898: U.S. Geological Survey 20th Annual Report, p. 341-423. 

Schrader, F.C., and Spencer, A.C., 1901, The geology and mineral resources of a portion of the Copper River 

district, Alaska: U.S. Geological Survey Special Publication, 94 p. 

References 
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Winkler, G.R., and Plafker, George, 1981, Geologic map and cross sections of the Cordova 

and Middleton Island quadrangles, southern Alaska: U.S. Geological Survey Open-file Report OF 81-

1164, 24 p. 

Winkler, G.R., and Plafker, George, 1991, Geologic map of the Cordova and Middleton Island quadrangles, 

southern Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-1984, scale 

1:250,000. 

References