54 CONTRIBUTIONS TO ECONOMIC GEOLOGY, 1902. [bull. 213. 
of igneous rocks were recognized, one of which is a green, compact 
rock, probably an altered intrusive from the schist series, while the 
other is an unaltered rock of very basic type. The creek has not been 
thoroughly prospected on account of inundation of the prospect holes. 
In the middle of the creek, bed rock has not been reached, but good 
prospects have been found on the rims. At Claim No. 5, about one- 
fourth of a mile above the mouth of Gold Run, a shaft was being sunk 
on the left limit of the pay streak, with a view to draining the bed 
rock with a steam pump. This shaft penetrated, to a depth of 12 feet, 
broken bed rock similar to that on Glenn Creek. The pa}^ streak 
here is believed to be from 50 to 60 feet wide. The average yield from 
a number of pans taken from the pay streak was reported to be 11 
cents. About one-half mile above this place mining was in progress 
on a claim on which the bed rock has been partially drained. The 
claim had not been fully crosscut, but it was believed to have a pay 
streak 60 feet wide. Where it has been prospected the pay streak is 2 
feet thick and underlies 6 feet of muck and barren gravel. Twenty- 
five and 50 cent pans have been obtained from this pay streak. The 
owners of this mine were attempting to work it in summer, stripping 
off the muck and barren gravel and shoveling the pay dirt into sluice 
boxes. 
On the bench between Glenn Creek and Gold Run have been found 
shallow gravels carrying placer gold in paying quantities. It is 
reported that generally on this bench the bed rock is covered by a 
layer of clay, probably derived from the decomposition of the bed 
rock. This clay carries a little gold, the coarsest being near the 
surface. The gold does not extend far up the hill to the northward, 
but can be traced down the hill for several thousand feet. Two 
claims have been located on which gold is found in paying quantities. 
At the upper end of the upper claim the excavation shows 6 inches 
of reddish clay soil overlying 1 foot of gravel consisting of clay mixed 
with small pieces of gray schist similar to the bed rock, but containing 
occasionally large, well-rounded pieces of a basic igneous rock. This 
gravel is the pay streak and rests on bed rock. At the lower end of 
this excavation, about 200 feet from the point described, 4 feet of 
nearly barren gravel wash overlie the pay streak, which consists of 1 
foot of gravel made up of broken fragments of schist bed rock. The 
pay streak has a width of 65 feet. Beyond the pay, however, on the 
south side, a prospect hole was sunk through 4£ feet of broken schist 
debris, showing little, if any, gravel wash. Colors of gold were found 
near the bottom of this hole. On this claim the attitude of the gravel 
indicates a current from the north. 
The lower claim has been prospected at a point one-fourth mile 
southeast of the upper claim. Here prospect holes show the gravel 
to be from 6 to 8 feet thick. The position of the pebbles indicates 
deposition by a current flowing nearly east. The gravel contains a 
