GEOLOGIC AND TOPOGRAPHIC MAP 
OF THE 
NORTHERN PACIFIC ROUTE 
From St. Paul, Minnesota, to Seattle, Washington 
— “gg scm from United States Geological Survey Atlas 
, from railroad alignments and profiles supplied by 
the Ne rthern Pacific Railway Company and from additional 
information collected with the assistance of this compan 
UNITED STATES GEOLOGICAL SURVEY 
GEORGE OTIS SMITH, DIRECTOR 
R. B. Marshall, Chief Geographer 
1915 
David White, Chief Geologist 
Each quadrangle shown on the map with a name in parenthesis in the 
lower left corner is mapped in detail on the U. S. G. S. Topographic 
Sheet of that name. 
BULLETIN 611 
SHEET No. 9 
ee a EA 
NORTH DAKOTA a 
103 30° 
TO MISSOUA? Ave ‘-” 
PO ad 
EXPLANATION 
Thickness 
in feet 
A Shale (White River formation) 40 Oligocene 
B Sandstone and shale, with beds of 
lignite (Fort Union formation) 850 Eocene | 
Tertiary 
[> 
Green \_ 
PP, 
te 
: 
Sheer No. /O 
T ¢ ' 
A Santis / 
SDE some 
Oo 
Ze ay ie sHump 
fort union formation 
de etemine 
inne 
Fort . Urffan : forffiation 
1 
Scale 500,000 
Approximately 8 miles to | inch 
ra ; sl 
; Ste 2 
Bey 
ee aisacine Gh es ZoMiles 
Fe SUI EGR, SEW, « hs Eo PAPO O TG ap strsstbpecie 
Contour papain Beha: feet 
ELEVATIONS IN FEET MEAN SEA LEVEL 
Paul. Minnesota. 
fy s re “a 
The crossties on the railroads are spaced | mile apart 
Fort. tS dae Saba ik 
_ 71 
: ASr 
Be 
Sheet No.8 
46 
3 
103° 
ENGRAVED AND PRINTED @Y THE LS GEOLOGICAL SUMVEY 
103°a0' 
