7^/ PRELIMINARY REPORT - , /X b" 7 



. <™ S. F. BATRD. 



UNITED STATES GEOLOGICAL SURVEY 



WYOMING, 



PORTIONS OF CONTIGUOUS TERRITORIES, 



(BEING A SECOND AISTSTTTAE REPORT OF PROGRESS,) 



CONDUCTED 



UNDER THE AUTHORITY OP THE SECRETARY OF THE INTERIOR, 



F. V. U A YD EN 



UNITED STATES GEOLOGIST. 



(A. , 5 D-« vr-t <r ^cc~'/ U f : ' . J* 



-HilH.^55ZJi4«HIKGTON: 



GOVERNMENT PRINTING OFFICE. 

 1871, 



