1915'] The Coggins Gold Mine 175 



The percentage of free gold in the ore at the 250-foot level 

 is approximately the same as at the 200- and 100-foot levels. 

 It is very interesting to note, and indicates that this type of ore 

 is carrying free gold to considerably greater depth than had 

 "been expected. 



Northeast Pit. — This pit, which is about 400 feet N. 42° 

 E. from the main shaft, is 13 x 13 feet, and has been sunk to a 

 depth of approximately 15 feet. This pit exposed the slates 

 which, for a width of 6 feet, contained numerous seams and 

 veins of quartz. The strike of the slates was approximately the 

 same as that at the shaft, and their dipping, if anything, a little 

 more vertical. All the slates were badly decomposed to the 

 depth of the pit. A sample was taken from across the width of 

 this open pit, and upon panning showed considerable free gold. 



Southtuest Pit. — This pit, which is at the extreme southwest 

 portion of the 62-acre tract, has been sunk to a depth of about 

 6 to 8 feet alongside of a diabase dike. The strike of the schists 

 that were exposed is approximately ]^. 43° E., and the strike of 

 the dike approximately N". 20 to 30° E. A sample was taken 

 of the slates as exposed in the pit just to the northeast of the 

 dike; but, upon panning, this did not show any free gold, al- 

 though some pyrite. 



