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Author/Creator
- Geological Survey (U.S.)60
- Maps.com (Firm)23
- Omang, R. J.7
- Arkansas Geological Commission6
- Arkansas Soil and Water Conservation Commission6
- Mississippi. Bureau of Land and Water Resources5
- United States. Bureau of the Census. Geography Division5
- Northern Cheyenne Tribe of the Northern Cheyenne Indian Reservation, Montana4
- Southeastern Wisconsin Regional Planning Commission4
- United States. Bureau of the Census. Data Preparation Division4
- United States. Soil Conservation Service4
- Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation, Montana3
- Lee, Roger W.3
- Lumber River Council of Governments3
- National Atlas & Thematic Mapping Organisation (India)3
- Plafcan, Maria3
- Sherrill, Marvin G.3
- Strickland, A. G. (Alfred Gerald), 1953-3
- Darden, Daphne2
- Demcheck, Dennis K.2