National Geologic Map Database
General Information
- Title: Exshaw Formation of Devonian and Mississippian age in northwestern Montana
- Author(s): Sandberg, C.A.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Bulletin 1254-A [p. A39-A41]
- Larger Work: Hayes, P.T., Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1966
- Publication Date: 1967
- Map Scale: 1:1,942,033
- Cross Section: None
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