U. S. GEOLOGICAL SURVEY 



BULLETIN 612 PLATE XLVIII 



A, VIEW OF TERTIARY GOLD-GRAVEL DEPOSITS BETWEEN GOLD RUN AND DUTCH FLAT 



LOOKING BACK OVER THE GOLD GRAVELS FROM GOLD RUN. 



Note the flume in which water is conducted, formerly used in the washings but now employed for irrigation. 



£. VIEW IN A RAILROAD CUT BETWEEN FOREBAY AND MIDAS. 



Shows the character of the deposits laid down over the old plateau surface, which, now uplifted and tilted to 

 the west, forms the west side of the Sierra. The cut exposes rounded stream bowlders, coarse angular blocks 

 of lava, and layers of finer volcanic ash and sediment. 



