National Geologic Map Database
General Information
- Title: Stratigraphic problems in the upper Mississippi Valley
- Author(s): Trowbridge, A.C., and Atwater, G.I.
- Publishing Organization: Geological Society of America
- Series and Number: Bulletin v. 45 no. 1 [p. 21-80]
- Publication Date: 1934
- Cross Section: Yes
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