BULLETIN 612 



SHEET No. 15 



GEOLOGIC AND TOPOGRAPHIC MAP 



OF THE 



OVERLAND ROUTE 



From Omaha, Nebraska, to San Francisco, California 



Base compiled from United States G-eological Survey Atlas Sheets, 

 from railroacl alignments and profiles supplied by the Union Pacific 

 Kailroad Company and the Southern Pacific Company and from addi- 

 tional Information collected with the assistance of these companies 



UNITED STATES GEOLOGICAL SURVEY 



GEOBGE OTIS SMITH, DIRECTOR 



David White, Chief Geologist 



R. B. Marshall, Chief Geographer 



1915 



Each quadrangle shoum on the map with a name in parenthesis in the 

 lower left comer is mapped in detail on the U. S. G. 5. Topographic 

 sheet of that name. 



