Elk City mining news. (Elk City, Idaho) 1903-1913, 1904-08-13
MINES OF JUDITH BASIN.

Lewistown, in Fergus county Mon, is
now reached by the line of the Mon
tana Railroad Co., which was completed
last year from Lombard, on the main
line of the Northern Pacific, to Lewis
town, a distance of 157 miles. Lewis
town is on a small tributary of the
Judith river, which flows northerly into
the Missouri, draining Judith basin.
This basin is approximately 100 miles in
diameter and is bounded on the south
by the Snowy range, on the west by the
Belt mountains, with the Judith and
Moccasin ranges on the east and north.
In the North Moccasin range is the
Kendall mining district, within which
are the Kendall, Barnes-King and other
mines; in the Judith range is the Gilt
Edge district, where are situated the
mines of the Chicago Montana company,
controlling the old Whiskey gulch mines,
those of the Gold Reef Mining company
and others. The Kendall district is 20
miles from Lewistown; the Gilt Edge Is.
The mine of the Kendall Gold Mining
company is controlled by Finch & Camp
bell. of Spokane, and is under the man.
agement of H. H. Lang. The property
is paying dividends of $25, 900 per month,
having maintained that rate for several
years. The mine is developed by open
onto o,d hxy q E0n g. ;ro1;oo ebo 81 ,,,;+l
levels at regular intervals. The vein
strikes northeast-southwes along lime
footwall, the hanging wall blending into
the shale and sandstone. A dyke of
porphyry cuts through the vein at right
angles, and the richest ore is on the
contact of the lime, shale and sandstone
with the porphyry. At the 20O-ft. level
the vein has an average width of 125
feet, with dip of IS degrees; a stopped
out chamber is 100 feet wide and four
slopes high, and from this level the
workings are continuous to the surface.
The ore is a quartz-porphyry, containing
II per cent silica and per cent iron,
with principle values in gold, there be-
ing only trace in silver. 1t is we'll
suited to cyaniding, 300 tons in "a hours
being treated by that method. The ore
is crushed to IA inch size before placing
in the teaching watts, each of the latter
being % fit. square and 8.5 feet deep,
constructed of steel, IL in number. hold
ing ITO tons each of dry ore. Seven
days are required for teaching; pounds
Of cyanide per ton of water is used as
strong solution, this being followed by
a week solution in which l ID. cyanide
per ton of water is used, and finally bv
wash of fresh water. In precipitation
by zinc shavings the consumption of
zinc amounts to OBS lb. per ton of ore
treated. The ore, as fed to the mill.
averages $3.50 per ton, and the extrac-
ton is 80 per cent. Mr.. Lang states
that the cost, including mining, milling
and development, averages below So
per ton of ore treated. Everything is
run by electric power and force of Is
men is employed.
The Barnes-King Mining company's
mine is on the same ore zone as that of
the Kendall. The Barnes King, how
ever, is wholly within the lime, the vein
being about 30 feet wide, with a dip of
80 degrees. 1t is opened by surface
cuts and 270-ft. shaft. The collar of
the shaft is 200 feet below the apex of
the vein. From the 100-ft station an
SCOTT. drift has been driven; a 6OO-ft.
drift has been run from the 200-ft. level.
A 200-ft Wine has been sunk in ore
from the 200-ft. level The ore COM
prises altered lime with some sandstone.
The values are in gold, with a trace of
silver, amounting to an average of 50
per ton. The gold is extracted by eva
hide, and it is stated the extraction
to 81 per cent. Thus far. the
ore is well oXidized and there are few
conditions. 1t is found nee
essaly, however, to mix the sandstone
and the lime ores in the watts to overcome
the free Stacking of the latter. Super
ntendent H. |. Shaw states that thew
use 0.3 lb. of cyanide to the ton of ore
and that the consumption of zinc in pre-
,ipitation amounts to 25 lbs. to the ton
If ore treated E. w. King, one of the
is manager of the com
oany The mill is handling 100 tons of
,re daily.
The Golden Discovery group and 9th