[Accrs] UPRR Survey Map 1864-68

[Alameda County Central Railroad Society]

https://www.loc.gov/resource/g4051p.rr005920/

This is a very interesting map.   Zoom in on the right side (Omaha) elevation levels at the bottom.  Then follow it to the western part.
Gives you a good sense of the power needed to cross the summit.




 		 	   		  
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