National Geologic Map Database
General Information
- Title: Pyrrhotite distribution in the conterminous United States, 2020
- Author(s): Mauk, J.L., Crafford, T.C., Horton, J.D., San Juan, C.A., and Robinson, G.R.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Fact Sheet FS-2020-3017
- Publication Date: 2020
- Map Scale: 1:12,658,000
- Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.