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| | | | 
| | | | U. S.PACIFIC RAIL ROAD EXP&SURVEY | | 
| | | | WAR DEPARTMENT. - | | 
| | | GEOLOGICAL MAP le | 
| | | OF THE | 
| | | e E PT IC. rs | 
| | | Route explored by Lieut AWWHIPPLE Corps of Top! Eng? 
| | | near the Parallel of 35° North Latitude | 
| | | FROM THE 
| Y et Re ID M A " ACIDIC" ^ 
| | MISSISSIPPI RIVER To tHE PACIFIC OCEAN 
| | | 1853-1854 
| | | Prepared in the Office of Pacific Rail Road Exploration & Survey WarDepart™ 
| J Fror the Notes and Collections of the Geologist of the Expedition M*Jules Marcou 
| | I ATE 
ës RA | | | By William P Blake. 
A N R 
EE y ARS WE 
IT CO PS 
Lith 6 A s 
$7 22: e 
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Tertiary (owtcrops/ 
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AN 
| 
. 
Exc e ; P L Das C ¡Gros Es ; PTE) i E tarboniferous Sundst Gypsum tórmati Cretaceous 
| 1] Granite & Metamorphic Erupted basalt or trappean rock Volcanoes & Lava arbonifèrous limestone & Deyontun /? s arboniférous Jandstone ¿y psum formation 
-| 
= SMS E 4 ~ T we CT ee RETO EE EA e E V mp AT SE E se" : P = Se 
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