Map Showing Altitude of the Top of the "Dakota Sandstone," Montana
Description:
From introduction: In 1978 the U.S. Geological Survey began a 4-year study of aquifers in the northern Great Plains. The purpose of this map, which is a product of that study, is to show the altitude of the top of the "Dakota sandstone" (drillers' term).
Date:
1982
Creator:
Feltis, R. D.
Item Type:
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Report
Partner:
UNT Libraries Government Documents Department