[a 
ee 
DOMINYT 
roa Masso uri p 
MON TANA| 
(oa 
45; Y 
= | 
WYOMING 
I BLACK 
THR. 
We 
fear 
i 
; DA K\oO TA 
! T BUR. 2 
1 
HILLS 
Be Arsh koAve\ 
Omaha: Des Moines’ 
qT 
Ji ENAD 1 AN 
<j 
og 
Y Galvesion 
jena a ae 
By ei 
MAP 
SHOWING 
DRIFT AREA 
AND BEARINGS OF 
GLACIAL FURROWS. 
Haplanations. 
Line of 6007" attitude . 
are Margin of Drift Area 
sp > Bearing of Glacial Furrows 
