National Geologic Map Database
General Information
- Title: Pre-Quaternary rocks in the Sun River Canyon area, northwestern Montana
- Author(s): Mudge, M.R.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Professional Paper 663-A
- Larger Work: Geology of the Sun River Canyon area, northwestern Montana
- Publication Date: 1972
- Map Scale: 1:48,000
- Cross Section: None
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Geologic units referred to in Geolex
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