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Author/Creator
- Geological Survey (U.S.)236
- Maps.com (Firm)34
- Afghan Geological Survey28
- U.S. Task Force for Business and Stability Operations28
- Davis, Philip A.26
- Cagney, Laura E.10
- Louisiana. Department of Transportation and Development. Water Resources Section8
- National Ocean Survey8
- Arko, Scott A.7
- Harbin, Michelle L.7
- National Archives (Great Britain)7
- Seanor, Ronald C.7
- U.S. Coast and Geodetic Survey7
- United States Coast Survey7
- United States. National Ocean Service6
- New Hampshire. Water Division5
- Tabor, R. W. (Rowland W.)5
- Earthquake Hazards Program (Geological Survey)4
- Fendick, Robert B.4
- Louisiana. Department of Transportation and Development4