Page 751 - calmining1890

TRINITY COUNTY. 699

ae Haskin Claim, and the banks of gravel on each side average forty-
sjve feet in depth.
Average yield of gravel per acre, $24,000. Average yield of gravel
er cubic yard, 33^ cents.
Water is obtained from Buckeye and Hatchet Creeks. Ditch, six and
,nd one half miles long, two and one half feet bottom, two feet deep;
>ressure, one hundred and fifty feet; inches water, four hundred; grade
f ditch, three fourths inch to the rod.
A No. 2 monitor, with a two and one half inch nozzle, is used.
|
Pipe is five hundred feet in length; eleven inches in diameter; made
>f No. 16 iron.
Sluices, one hundred twelve-foot boxes, five and one half by three feet
righ; grade, one and one half inches to twelve feet. No quicksilver
ased; no undercurrent.
Gold: Coarse and fine; value per ounce, $18 45. Mainly caught in
race at head of flume, but little being obtained in the sluices.
Season: Five months; ten hours' run daily. Amount of ground
worked to date, fifteen acres.
This property is furnished with water to clear the sluices of debris
that accumulates on account of the slight grade of the boxes. A self-
fshooter — an automatic contrivance — discharges the waters from the
reservoir at the head of the claim every forty-five minutes into the bed-
rock cuts and sluices in such volume as to carry all the bowlders through
the boxes.
THE GOLDEN RIVER CLAIM ( HYDRAULIC)
Consists of one hundred and eleven acres, and adjoins the Hatchet
Creek on the south. This claim is not worked, having no water right.
From the amount of ground worked — about one third of an acre —
$9,000 was extracted.

THE BLOSS & M'CLARY CLAIMS ( HYDRAULIC )

Are situated in Sec. 5, T. 36 N., R. 7 W., and comprise:
The Center Placer 159.94 acres.
The Svkes Placer 139.66 acres.
The Brush Creek Placer S0.00 acres.
The Keystone Creek 40.00 acres.

Average depth of gravel, forty-five feet; average yield of gravel per
acre, $18,876; average yield of gravel per cubic yard, 26 cents.
Water is obtained from Swift Creek by two ditches. The upper ditch
is eight miles long, heading on the North Fork of Swift Creek at the
foot of several lakes. Grade, three fourths of an inch to rod; size of
ditch at the top is four and one half feet, at the bottom three and one
half feet, and depth two and one half feet. Inches of water, one thou-
sand; pressure, five hundred feet.
Lower ditch: Grade, five eighths of an inch to rod length, three miles;
owning two thirds rod. Size at top, seven feet; bottom, six feet; depth,
two feet. Pressure, one hundred and fifty feet. Inches of water, two
thousand.
Flumes: Upper ditch, forty-six twelve-foot boxes; lower ditch, twelve
twelve-foot boxes.