Geologic map showing total thickness of coal in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming /

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Denson, N. M. (Norman MacLaren), 1914-, Crysdale, Bonnie L.
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey ; 1991.
Series:	Miscellaneous investigations series (Geological Survey (U.S.)) ; I-2131-A.
Subjects:	Geology > Powder River Basin (Wyo. and Mont.) > Maps. Coal > Geology > Powder River Basin (Wyo. and Mont.) > Maps.

Description
Item Description:	Includes text, bibliography, table, and index map. Cartographic material.
Physical Description:	1 map : color ; 83 x 120 cm., on sheet 101 x 147 cm., folded in envelope 30 x 24 cm.
Bibliography:	Includes text, bibliography, table, and index map.