Geologic map showing thickness of sedimentary rocks from ground surface to the top of the upper Cretaceous Pierre Shale in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming / U.S. Department of the Interior, U.S. Geological Survey ; by N.M. Denson, C.T. Pierson, and W.D. Gundy.

Author/creator Geological Survey (U.S.)
Other author Denson, N. M. (Norman MacLaren), 1914-
Other author Pierson, Charles Thomas, 1918-
Other author Gundy, W. D.
Format Map
Publication InfoReston, VA : The Survey ; Denver, CO : For sale by Map Distribution, 1994.
Description1 map : col. ; 84 x 120 cm., on sheet 104 x 148 cm., folded in envelope 30 x 24 cm.
Subjects

Cartographic dataScale 1:200,000 (W 107°30ʹ--W 104°30ʹ/N 45°30ʹ--N 44°00ʹ).
SeriesMiscellaneous investigations series ; map I-2433-A
Miscellaneous investigations series (Geological Survey (U.S.)) I-2433-A. ^A416250
General noteIncludes index to quadrangles, text, bibliography, 1 table, 1 graph, and 1 diagram.
Other titleThickness of sedimentary rocks from ground surface to the top of the upper Cretaceous Pierre Shale in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming, geologic map.
GPO item number0619-G-08
Govt. docs number I 19.91:I-2433-A