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Collection
- Scientific investigations map650
- Water-resources investigations report447
- Open-file report371
- U.S. Geological Survey open-file report76
- Data series62
- U.S. Geological Survey data series49
- Miscellaneous field studies42
- Water-resources investigations39
- Miscellaneous investigations series37
- Geologic investigations series35
- U.S. Geological Survey miscellaneous field studies map27
- U.S. Geological Survey scientific investigations map26
- U.S. Geological Survey miscellaneous field studies23
- Water resources investigations11
- Water-resources investigation report11
- USGS open-file report9
- Scientific investigations map ;8
- Geologic quadrangle map7
- Louisiana hydrologic atlas map7
- U.S. Geological Survey professional paper7