Geologic map of the Black Canyon of the Gunnison River and vicinity, western Colorado /

Bibliographic Details
Main Author:	Hansen, Wallace R., 1920-
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document Map
Language:	English
Published:	Washington, D.C. : U.S. Geological Survey, 1971.
Series:	Miscellaneous geologic investigations ; map I-584.
Subjects:	Geology > Colorado > Black Canyon of the Gunnison > Maps. Geology > Colorado > Gunnison River > Maps.

Description
Item Description:	Relief shown by contours and spot heights. "Geology by Wallace R. Hansen, assisted by Frank R. Karner, 1957; [and others]. Geology in south half of T.48N., R.7W., mapped by Robert G. Dickinson, 1962-63." "Datum is mean sea level." Includes 5 geologic sections and index to quadrangles on sheet 1. Cartographic material.
Physical Description:	1 map on 2 sheets : color ; 88 x 172 cm., sheets 98 x 113 cm.