MEM. MUSEUM COMP. ZOOL. VOL VI A 
2 = PLATE B 
Green Val. 4 d 
__—~ Secreta 
6 House 
Whisky Hill 
le 
Y y Canudu 
t Fill 3}§ 
°rk of Midg Fit k 
y 
N sere eige, oa 
y 
s 
| | 
Brimstone Plaths 
°/ Mountain 
° 
© ; 
y Bala hoberts Flat 
American Fill | 
Tina : SKETCH MAP 
Showing the distribution of the 
VOLCANIC AND GRAVEL FORMATIONS. 
OVER A PORTION OF 
PLACER AND EL DORADO COUNTIES 
CALIFORNIA 
J Bien, Lith NY 
