Montana, 7.5 minute series (topographic) / mapped, edited, and published by the Geological Survey.

Bibliographic Details
Corporate Authors: Geological Survey (U.S.)
United States. Forest Service
Language:English
Published: Reston, Va. : U.S. Geological Survey, [1948?]-
Subjects:
Montana > Maps.
Topographic maps.
Maps.
Genre:
Maps.
Topographic maps.
Physical Description:maps : color ; on sheets 69 x 56 cm
Cartographic Data:Scale 1:24,000 ;
Polyconic projection or Lambert conformal conic projection
(W 116°00ʹ00ʺ--W 104°00ʹ00ʺ/N 49°00ʹ00ʺ--N 44°00ʹ00ʺ).
Format: Government Document Map
Description
Note:Relief shown by contours and spot heights.
"Topography by photogrammetric methods from aerial photographs."
Includes quadrangle location map.
Photorevised sheets show changes in purple.
Some sheets issued as "provisional map."
Provisional sheets and editions beginning in the 1990's include index to adjoining sheets.
Set includes various issues of some sheets.
Some sheets revised by the USDA Forest Service for lands within National Forests.
Standard map series designation: Series V894.
Cartographic material.
Call Number:Arranged by sheet name - refer to index in Maps