Geologic map of the northern Ruby Range, Madison County, Montana [cartographic material] / by Lawrence P. Karasevich.
- Relief shown by contours and spot heights. "Contour interval: 20 and 40 feet." Index map and panoramic index of cover photo on back of envelope. Includes 5 cross sections, topographic map index of previous studies, declination diagram and location map.
- Montana Bureau of Mines and Geology
- Held by
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