Exploration intensity map of the Upper Cretaceous D Sandstone, Denver Basin, Colorado, Nebraska, and Wyoming /

Bibliographic Details
Corporate Author: Geological Survey (U.S.)
Other Authors: Higley, Debra K., Gautier, Donald L., Mast, Richard F. (Richard Frederick), 1931-
Format: Government Document Microform Map
Published: [Reston, Va.] : The Survey, [1987]
Series:U.S. Geological Survey open-file report ; 87-351-A.

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