an. EXP. & SURVEYS CAL. y 1 ^ 
1 
U. S. PACIFIC RAIL ROAD EXPLORATIONS & SURVEYS | 
GEOLOGICAL SECTION z 1 "s 
OF THE E : 
a COAST MOUNTAINS AND SIERRA NEVADA : | 
E Explored Lieut R. S. Williarason, U.S. Top. Engrs. in 1853 E 2. 1 E $ 
j ۳ ۱ جهن‎ P A 0 | F I C 0 C E A N 4 | | : 
a FROM SAN FRANCISCO TO THE GREAT BASIN E 3 | y E ; Ru m s. s A 
Prepared in Office of P. R- R. Exp. & Surveys b. ا‎ e if 3 $ OAY OCF SAWN PR ee 
by É ! - BEER b. 一 p. Cw ت‎ EEG e — 
WP. Blake. ` 
Scale of 2 Miles to 1 Inch - Ds 
hhk ; E 
f FE | 7 T T mes | 
Vertical Scale: 5000 Feet to one Inch. is 
$60 i500 2500 3500 4500 t : : | 
o 1000 1000 3000 4000 8000 10000 15000 FEET E AE . r 
E | 
A E : > 
E B E qo— T^ A 0 F *"- Ww A E- A N RE rer du Su NN des RITU 4 E NN H 
加 E xt 
a 
| 
] 
| 
۰ l : ; 
t Granitice and Metamorphte rocks with erupted Trap. Perphy te | and vrerflows of HA EAT Lava 
5 ™ 
5 ; Es 
g 
Slate. E Slates and Clay Kilates Usd pts y A 
: E LM LIII oti a E LIT RA T A. PERS 2 2A ; { 4 
SIERRA NEFADA | : | | e : 
A S i N E 
A eae EM RER 
t | : 
8 x» Te tea m) ^ 
۱ E : T SINCLAIR'S LITA PHIL! 
CS 7۳ and (lay Slater. Metamorphic 
Granite und Metamorphic‏ [ تا 
pete aes 
