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Collection
- Water-resources investigations report4,652
- Scientific investigations report3,043
- Open-file report1,889
- Geological Survey professional paper1,885
- Geological Survey bulletin1,772
- U.S. Geological Survey bulletin1,155
- Fact sheet1,117
- Geological Survey circular1,086
- Scientific investigations map677
- U.S. Geological Survey professional paper650
- Professional paper568
- U.S. Geological Survey circular512
- USGS fact sheet478
- Water-resources investigations387
- Miscellaneous investigations series377
- Shorter contributions to general geology334
- U.S. Geological Survey open-file report298
- Data series277
- Miscellaneous field studies272
- U.S. Geological Survey water-resources investigations report242