0. s. PACIFIC RAU< ROAD EXP. .t SURVEYS. 
WAR DEPARTMENT. 
<; E () I j O (J I ( A 1 . M A P 
OF THE 
Route explored by Lieut AW.WHiPPLE, Corps of Topi Eng 3 
near the Parallel of 35° North Latitude 
from Tin: 
M I SSISSIPPI RIVER to tiie PACIFIC OCE AN' 
1853-1854. 
■oparcd in the OfAce of Pacific Rail RoaAExp’loratioiisttlhirveysWar Depart 1 
From, the "Notes and Colled in us of I lie Geologist o^iBie Ejq(ediliOR,M?JulcsMai'cou 
By Afnimnil*. Blake. 
, Scale Statute Miles. 
MprnrW. 
Mi Snu Mat* 
Alluvial and detritus 
Tertiary / mi crops/ 
Tre/area its 
nsiiin /brma/ion 
Curb on Herons Haudsto 
Carboniferous limestone ,(• Deronian\ ! ?) 
opted basalt or trappean rock 
| (i ramie d Mein 
l.ith Iry A.'lfoen i Co , 11 a limit 
