Description: Map showing structure contours on the top of the upper Jurassic Morrison Formation, Powder River Basin, Wyoming and Montana

Main Author:	Geological Survey (U.S.)
Other Authors:	Crysdale, Bonnie L.
Format:	Map
Language:	English
Published:	Reston, Va. : Denver, CO : The Survey ; For sale by Map Distribution, 1991.
Physical Description:	1 map ; 72 x 58 cm, on sheet 91 x 104 cm, folded in envelope 30 x 24 cm.
Series:	Miscellaneous field studies ; map MF-2140-C.
Subjects:	Geology -- Powder River Watershed (Wyo. and Mont.) -- Maps. Geology, Stratigraphic -- Jurassic -- Maps. Geology, Structural -- Maps. Morrison Formation -- Maps.

Item Description:	Includes text, bibliography, cross section, block diagram, stratigraphic column, and index map.
Physical Description:	1 map ; 72 x 58 cm, on sheet 91 x 104 cm, folded in envelope 30 x 24 cm.