Page 752 - calmining1890

700 REPORT OF THE STATE MINERALOGIST.

Pipe: One thousand nine hundred feet, fifteen and thirteen inches
diameter. /
Monitors: Two, Nos. 1 and 2; nozzles, three inches and four inches.
Sluices on claim: Twenty-five boxes, six by three feet; grade, thr
and one half inches to twelve feet. Lower sluice for tailings, thirty-fr
boxes twelve feet each; two-inch grade. No undercurrent. Paving
sluice boxes eight inches thick.
Gold mainly recovered from ground sluice; balance from first fit
boxes. Value, $18 15 per ounce.
Amount of ground worked to date, sixteen acres.
In connection with this property are five lakes: Lake Elna; elevatioi
four thousand eight hundred and sixty feet. Two lakes not name(
elevation, four thousand eight hundred and twenty feet. Bear Lak<
elevation, four thousand five hundred feet. Meadows Lake; elevatioi |i
four thousand two hundred feet. Deer Lake; elevation, three thousani
five hundred and sixty feet. Angle Lake; elevation, three thousand fot
hundred and ten feet. The waters of the two last mentioned lakes fin
their way into the upper ditch. Lake Elna is one thousand feet in dian
eter and of unknown depth.
The company proposes the erection of a dam between the ridges thre
hundred feet long by fifteen feet high in center, the average height t| jj
build not exceeding five feet, and thus secure storage for sufficient wate «;
from the mountain streams feeding the lake to furnish water during
season of ten months to run double their present number of giant Is:;
j
From the dam a ditch is to be built for one and one fourth miles, com CI
ducting the waters into a deep canon leading into head of upper ditct
Elevation of lake above head of upper ditch is eight hundred and eighty it
five feet.
THE COYLE MINE ( HYDRAULIC )

Comprises seventy-six and twenty-seven hundredths acres of benches, anc
forty acres of flat. The average depth of gravel is sixty feet. The yield,
of gravel per cubic yard is 20 cents, and the yield of gravel per .acr«j
is $19,360. Water is obtained from Swift Creek, one third of Bloss ^
McClary's lower ditch, and from a small ditch below the Bloss &
McClary Ditch. The pressure from reservoir is one hundred and fifteer
feet.
Sluices: Two hundred and eighty boxes, twelve feet in length; width
three feet; depth, three feet; and grade, three inches. A self-shooter is
used, discharging from a reservoir every thirty minutes.
Pipes: One hundred feet, thirty inches in diameter; five hundred feet
fifteen inches in diameter; and two hundred feet, thirteen inches in
diameter. One monitor (No. 3) with five-inch nozzle.
The derrick is worked by overshot wheel, ten by three and one hal
feet. All bowlders and large rock are raised by the derrick and stored
in claim.
Amount of water required, fifty inches; no blasting; season, ten months,
running night and day; claim worked for the past twenty years; amount
of ground worked, twenty acres; tailings run on flat; waters running
into Trinity River.
There are several claims in this district, as shown on sketch Plate III,
that are not being hydraulicked on account of not having water supply.