National Geologic Map Database
General Information
- Title: Type sections and stratigraphy of the members of the Blackleaf and Marias River Formations (Cretaceous) of the Sweetgrass arch, Montana
- Author(s): Cobban, W.A., Erdmann, C.E., Lemke, R.W., and Maughan, E.K.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Professional Paper 974 [66 p.]
- Publication Date: 1976
- Map Scale: 1:1,307,733
- Cross Section: None
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