GROUND WATER ATLAS of the UNITED STATES
Montana, North Dakota, South Dakota, Wyoming
HA 730-I
Principal aquifers
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Volcanic- and Sedimentary- rock aquifers
Figure 25 Map of unconsolidated deposits (50K)
editable eps
file I025.eps.gz (693K compressed)
editable eps
file I025.eps.gz (693K compressed)