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Thickness of upper Cretaceous rocks from the top of the Niobrara Formation to the base of the Fox Hills Sandstone, Powder River Basin, Wyoming and Montana
- Author / Creator
- Available as
- Physical
Details
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- Creator
- Department of the Interior, U.S. Geological Survey ; by James E. Fox and Debra K. Higley
- Format
- Maps, Atlases
- Language
- English
- Contributors
- Publication
-
- [Reston, Va.] : The Survey, 1987
- Physical Details
-
- 1 map ; 55 x 55 cm., on sheet 80 x 80 cm
- OCLC
- ocm19771241
- Cartographic Data
-
Scale 1:500,000, Lambert conformal conic proj(W 107⁰--W 104⁰/N 45⁰--N 43⁰).
- Distributed to depository libraries in microfiche.
- Includes location map.
- Microfiche. [Denver, Colo. : U.S. Geological Survey, 1987?]. 1 microfiche ; 11 x 15 cm.