National Geologic Map Database
General Information
- Title: Maps showing geology and outcrops of part of the Virginia City and Alder quadrangles, Madison County, Montana
- Author(s): Wier, K.L.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Miscellaneous Field Studies Map MF-1490
- Publication Date: 1982
- Map Scale: 1:12,000
- Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.