BULLETIN 611 PLATE | 
U. S. GEOLOGICAL SURVEY 
: . ic 
: . 
i ey ar 
Ss an! 
ee oe 
— 7 
1. ay A . ae F 
emx ie ok 
\ ea FE ng el oe: /* es 
QS —— 2 a “] {F 
a. oe ‘SY % — ye: 
RELIEF MAP SHOWING SURFACE FEATURES OF 
Areas shown on the sheets of the route map are indicated in red. 
THE WESTERN PART OF THE UNITED STATES. 
