Geologic map of the Pretty Prairie quadrangle, Lewis and Clark County, Montana /
| Main Author: | |
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| Corporate Author: | |
| Format: | Government Document Map |
| Language: | English |
| Published: |
Washington, D.C. :
The Survey,
1966.
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| Series: | Geologic quadrangle map ;
GQ-454. |
| Subjects: |
| Item Description: | Relief shown by contours and spot heights. "Contour interval 40 feet. Datum is mean sea level." "Base by U.S. Geological Survey, 1958. Geology by M.R. Mudge, 1960-61, assisted by R.A. Sheppard, 1960, and by Dale Snow, 1961." Includes text, 3 col. cross-sections, location map, and index to adjacent quadrangles. Location map on envelope. Cartographic material. |
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| Physical Description: | 1 map : color ; 58 x 39 cm., on sheet 81 x 109 cm., folded to 21 x 28 cm., in envelope 30 x 24 cm. |