GROUND WATER ATLAS of the UNITED STATES
Montana, North Dakota, South Dakota, Wyoming
HA 730-I
Regional summary
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Areal distribution of aquifers
Figure 6 Map of glacial deposits (132K)
editable eps
file I006.eps.gz (990K compressed)
Figure 7 Map of principal aquifers (248K)
editable eps
file I007.eps.gz (2.1M compressed)
Figure 8 Map of regional aquifer systems (17K)
editable eps
file I008.eps.gz (116K compressed)
Figure 9 Diagram of overlapping aquifers of the Northern
Great Plains aquifer system (33K)
editable eps
file I009.eps.gz (1.1M compressed)
editable eps
file I006.eps.gz (990K compressed) 
editable eps
file I007.eps.gz (2.1M compressed) 
editable eps
file I008.eps.gz (116K compressed) 
editable eps
file I009.eps.gz (1.1M compressed)