Preliminary general geologic map of the Laredo quadrangle, Bearpaw Mountains, Montana /

Bibliographic Details
Corporate Author: Geological Survey (U.S.)
Other Authors: Pecora, W. T. (William Thomas), 1913-1972, Witkind, Irving J. (Irving Jerome), 1917-2008, Stewart, D. B.
Format: Government Document Map
Language:English
Published: Washington, D.C. : The Survey, 1957.
Series:Miscellaneous geologic investigations ; map I-234.
Subjects:
Description
Item Description:Relief shown by spot heights.
Planimetric and geologic features transferred by sketchmaster from aerial photographs (1941 flight) ... planimetric and geologic map ... based on field investigations in 1949-51."."
Includes text, explanation, index map, and bibliographical references.
Cartographic material.
Physical Description:1 map : color ; 88 x 58 cm., on sheet 102 x 92 cm., folded to 28 x 19 cm., in envelope 30 x 24 cm.