weight.] DESCRIPTION OF CLAIMS, 23 
bucket elevator. At the lower end of the claim a pit has been sunk 
and into this the gravels are washed, going first through a narrow 
sluice box, which gathers the coarse gold, and then into a sump cut 
in the bed rock. From this sump the bucket elevator lifts the gravel 
to the recovery sluice boxes on the surface (PL VI, ^4). 
An old creek channel 65 feet above the Porcupine, at the upper end 
of the claim, was formerly worked, and $3,000 is said to have been 
recovered, though the greater part of its gravels remain unworked, 
owing to the difficulty in getting water to that elevation. The devel- 
opment of this claim has been done by lessors, who expect large 
returns the coming season (1904). 
On the next claim above, in 1901, a pit 20 feet deep was sunk which 
exposed 80 square feet of limestone bed rock; $10,000 is said to have 
been taken out. During a period of high water the excavations were 
filled in, and the property has not been worked since. 
Discovery claim. — The bed rock, which here crosses the creek diag- 
onally, striking N. 60° W., consists of alternate beds of flinty and 
Fig. 2.— Section across Cranston claim, showing side-bench deposit. 
graphitic slate, in which natural troughs have been formed. The gold 
has been concentrated in these natural riffles, and often nuggets have 
worked down into the softer slate for 2 or 3 feet. The creek gravels 
on this claim average 12 feet in depth, with no definite layers, except- 
ing that most of the pay dirt lies on bed rock. Gold was first discov- 
ered in a small gravel bench 30 feet above the creek on the west bank; 
$15,000 was taken out with shovel and sluice box from an area 10 by 
30 feet. 
The stream has been diverted into a flume 20 feet wide, 5 feet deep, 
and 1,400 feet long, with a 3£ per cent grade; through this the 
water rushes at a rate of from 3,000 to 5,000 miner's inches per 
minute. About 100 feet above the outlet of the flume a pit has been 
sunk and a sump 10 feet deep excavated in bed rock. All the gravels 
are worked down through a short sluice box, which saves the large 
nuggets, into this sump, and are then lifted by a bucket elevator, of 
4,000 cubic yards capacity per twenty -four hours, to the surface sluice 
boxes. A water wheel receiving power from a small flume drives the 
