GEOLOGIC AND TOPOGRAPHIC MAP 
NORTHERN PACIFIC ROUTE 
From St. Paul, Minnesota, to Seattle, Washington 
— Pigeons from United States Geological Survey Atlas 
, from railroad alignments and profiles supplied b 
the 1 Nor thern Pacific Railway Company and from additional 
information collected with the assistance of this company 
UNITED STATES GEOLOGICAL SURVEY 
GEORGE OTIS SMITH, DIRECTOR 
David White, Chief Geologist R. B. Marshall, Chief Geographer 
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. | 
93°30’ 
94° (SheetNoZ2/) 
Sin an 
EXPLANATION 
ose surface materials 
45. A Stream deposits ew 7 
B Sand dunes and m | 
C Glacial river ra sips terraces i eee 
D Glacial outwash sand and gravel [ aay 
E Gray drift of western ice sheet 
F i drift of middle ice sheet } 
Underlying rocks (represented by 
heavy lines and patterns) 
Thickness 
in fe eet 
[Shs Shale (Decorah) 
estone, thin-bedded (Platteville) 30; 
‘ecbran: mak wake Ua. Petes) 150) 
G 4 Magnesian limestone (Shakopee Ordovician 
dolomite) sof 
| Magnenan limestone (Oneota 
dolomite) 100} 
H ‘ Geanite Archean 
NORTHER. 
P Pélisan Ribera ASS 
[ awe 
ee =) Arve 
s Oi fe) > 
a 
1 9 5 16Miles —— 
PO ee mens 
1 
Scale 500,000 
Approximately 8 miles to | inch 
Contour interval 200 feet 
ELEVATIONS IN FEE 
11 fi St. Paul, Minnesota. hy iO 
The crossties on the railroads are spaced | mile apart 
Bethel 
45) 
= 
50" 
