VOL. 4. 1802. PL. 0. 



"« ~~°Bl«cksmithFlit 



teun Gulch. 



tiuttyr/ 



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/oo 



"A/atvt 



Neocene Yuba and American Rivers, 



Sierra Nevada, California. 



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\ 

 *0 miles 



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w. fegjhga 



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