BULLETIN 612 



SHEET No. 4 



GEOLOGIC AND TOPOGRAPHIC MAP 



OF THE 



OVERLAND ROUTE 



From Omaha, Nebraska, to San Francisco, California 



Base compiled from United States Geological Survey Atlas Slieets, 

 from railroad alig-nments and profiles supplied by the Union Pacific 

 Ballroad Company and the South ei'n Pacific Company and from addi- 

 tional information collected with the assistance of these companies 



UI^lTED STATES GEOLOGICAL SURVEY 



GBOBQE OTIS SMITH, DIRECTOR 



David White, Chief Geologist 



R. B. Marshall, Chief Geographer 



1915 



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

 lower left comer is mapped in detail on the V. 5. C. S, Topographic 

 sheet of that name. 



100 



99^30' 



NEBRASKA 



Scale =r 



1 



t 



1 . 



J ■ J., 



500.000 

 Approximately 8 miles to 1 inch 



(O 



I I I 



15 



20Miies 



i».k 



LUH ' ■, I 



J I — ^ ^1 it ' ' ; t 



3oKilometers 



Contour interval 200 feet 



ELEVATIONS IN FEET ABOVE MEAN SEA LEVEL 



The distances from Omaha, Nebraska, are shewn every 10 miles 

 The crosstfes on the railroads are spaced I mile apart 



.^^ 



40t^ 



Elwood 





EXPLANATION 



The rock formations indicated on this map can not be seen from the train. 

 They are covered by recent stream deposits (idluviiini). Information about 

 them is derived largely from distant exposures and from well borings 



I 



100'* 



9930' 



