The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1920-01-22
Pine Creek Mines and Prospects AS Re-
ported By Government Biologists
rnnJ iusISii,SsS.

III OotA s.uGs % .IIG tLUJA .t.uuiL .....
in44e noE,I u Dee.er. 40 ,,v.n MAG
be4l4s zone Aele al the tame o. l.s!,
account o. bdu an.
.4Ae AMY .tuuuel - uIINeu from tur
east sIue OF fIne cIeeA IL a distance
DIS reported, Vi 4VUJ 1ecl 1ue yelu is
sald " Trend nortAa est anu uIp suutu-
west ana 10 lie On the contact ueLN cen
4uartAite and STATE. a ualk-coIuIe u
Glhe IRON TO u feet WIDE loUtUWs the
assure. ms ulKe was not mIscros
cupIcalIy examined, but II has the ap-
pearance OF Iamprophyre. Ore on the
dump consists vi rather coarse gram
ed gdIenA and sphalerite in d gangue
or quartz and sIdeute with a nttle
calcite. The length and width of the
ore shoot were not learned. The ore
is reported to have been displaced
about 800 feet by a fault On the
MatchIess claim, on the west side OF
Pine creek, there is an inclined shaft
" hose collar is 15O feet above the
creek level. The developmnts are
slight, and there is but little ore on
the dump. Thinly Illuminated gray and
blue quartzites and States of the Prich-
ard formation are we'll exposed. They
strike north 40 degrees west and dip
~ degrees northeast
hypotheek.
The Hypotheek Mining d Milling
company, acquired section 10, L. As
tAern Pacific Railway company, and
the mine is in the NEA of the section
near the head of French gulch. A
wagon road through French gulch
connects the property with Kingston,
miles to the north The mine is one
OF the old properties of the district
and has been worked internationally
since 1887. but no information as to its
production prior to 1916 was available.
During the period from June, 1916,
when the mill began to operate to
DCSSninoCA -Vi 1oIo, lie ny pOlHGeh
mine produced 1,173,S60 pounds of
lead, 7,O96.64 ounces of silver and
1888 ounces of gold, the total value
of which was about 100000 This
output was made from an ore shoot
recently discovered in the vein west
of fault which displaced it about Is
feet to the south on the hanging wall
side. The old workings, now aban-
doned, are on the west side of French
gulch, east Of the fault. They con-
sist of an adit tunnel in which, 600
feet from the portal, vertical shaft
Of 700 feet was sunk with drifts of
several hundred feet on the 500 and
700-foot levels Connection is made
from the 700-foot level of the old
workings with the 70O-foot level of
the new workings. AN old concen-
traitor stands in French gulch, 400 feet
from the portal of the tunnel.
The new workings are at the head
Of gulch, tributary to French gulch,
1900 feet west of the portal of the old
tunnel. This work was begun in 1913
and consisted in the sinking of an
1100-foot shaft with drifts aggregat-
ing about $500 feet on the 700, 900 and
11O0-foot levels. A barometric read
ing at the collar of the shaft gave an
altitude of 200 feet The hoist house,
building and mill are
closely grouped about the collar of
the shaft. Electric power is obtained
from the Washington Water Power
company's line.
The country rocks of the vein are
gray and blue states and thin -bedded
quantities with bed Of massive white
Or gray quartzite SO feet or more
thick, which crops out in French gulch
at several places in such a manner as
to indicate dome structure. These
rocks are regarded as the middle
member of the Prichard. In the I'M
derground workings the strata show
variable dips. In places the states
dip north at an acute angle to the
strike of the vein, but in the cross
cut on the 11O0-foot level they lie flat
for a distance but gradually dip south
and approach the dip of the vein. In
the west drift on the 1100-foot level
| the formation dips southwest. Mas
sive grayish quantities. are in some
places on the hanging wall and in
other places on the foot wall of the
vein.
The vein strikes N. 20 degrees w.
and dips about 70 degrees S. A fault
that strikes N. 40 degrees w. and dips
steeply to the southwest offsets the
vein about so feet to the south ON the
hanging wall side. This fault marks
the division of the mine into the old
and new workings. The vein differs
markedly on the two sides of the fault
both in the mineralogy of the vein anc
lin the depth of oxidation. East Of the
fault the vein was examined on the
roo foot level only, where connection
is made between the old and new
workings. Here the vein has an av'
erage width of several feet. In some
places It is a network of veinlets II
slate; in others it is a solid vein com
Iposed of quartz and carbonates. Cal
cite is abundant in places. The sui
Iphides have a sporadic and small de
velopment in the vein. There is on
small stope on this level, and SINAI