Geologic map of the Upper Holter Lake quadrangle, Lewis and Clark County, Montana /

Bibliographic Details
Main Author:	Robinson, G. D. (Gershon Du Vall), 1918-
Corporate Author:	Geological Survey (U.S.)
Other Authors:	McCallum, M. E. (Malcolm E.), 1934-, Hays, William Henry, 1922-
Format:	Government Document Map
Language:	English
Published:	Washington, D.C. : The Survey, 1969.
Series:	Geologic quadrangle map ; GQ-840.
Subjects:	Geology > Montana > Lewis and Clark County > Maps.

Description
Item Description:	Relief shown by contours and spot heights. Includes 6 col. cross-sections, and location map. Location map on envelope. Cartographic material.
Physical Description:	1 map : color ; 58 x 40 cm., on sheet 73 x 124 cm., folded in envelope 30 x 24 cm.