Geological Survey (U.S.) 236
Geological Survey (U.S.), 174
Arkansas Soil and Water Conservation Commission 118
Arkansas Geological Commission 95
U.S. Fish and Wildlife Service 28
United States. National Park Service 28
Arkansas Natural Resources Commission 22
Holland, Terrance W. 22
Manning, Carolyn A. 18
Romslo, T. M. 18
Dale, G. K. 17
Reed, Alfred Hamish, 1875-1975 17
Missouri. Division of Geology and Land Survey 16
Ollar, A. 16
Malamphy, M. C. 15
Schrader, Tony P., 15
Arkansas Geological Survey 14
Haley, Boyd Raymond, 1922- 14
United States. Bureau of Mines 14
Arkansas. State Highway & Transportation Department 13
Green, W. Reed 13
United States, 13
United States. Soil Conservation Service 13
Hays, Phillip D. 1962- 12
Southern Forest Experiment Station (New Orleans, La.) 11
United States. Army. Corps of Engineers 11
Westerfield, Paul W. 11
Arkansas. Department of Pollution Control and Ecology 10
Fitzpatrick, D. J. 10
Petersen, James C. 1952- 10
Schrader, Tony P. 10
United States. Forest Service 10
Chazin, Barbara 9
Erickson, M. S. 9
Stafford, Kenneth L. 1946-2011 9
United States. Forest Service. Southern Region 9
Edds, Joe, 1924- 8
Girty, George Herbert, 1869-1939 8
Gordon, Mackenzie, 1913- 8
Joseph, Robert L. 8
Pugh, Aaron L., 8
United States. Defense Mapping Agency. Hydrographic/Topographic Center 8
Fine, M. M. 7
Gonthier, Gerard J. 1962- 7
Green, W. Reed, 7
Little Rock Municipal Water Works 7
Ludwig, A. H. 7
Miser, Hugh D. 1884-1969 7
Neely, Braxtel L. 7
Stanton, Gregory P. 7
United States. Congress. House. Committee on Transportation and Infrastructure 7
United States. Congress. Senate. Committee on Energy and Natural Resources 7
United States. Forest Service, 7
Baker, Nancy Tucker, 1957- 6
Frezon, Sherwood E. 1921- 6
Glick, Ernest E. 1922- 6
Holland, Terrance W., 6
Hudson, Mark R. 6
Joseph, Robert L., 6
Louisiana. Department of Transportation and Development 6
Morris, Edward E. 6
Plafcan, Maria 6
United States. Army. Corps of Engineers. Memphis District 6
United States. Congress. House. Committee on Resources 6
Arkansas Natural Resources Commission, 5
Barks, C. Shane 5
Beaver Water District (Ark.) 5
Cain, Michael D. 5
Galloway, Joel M. 5
Lamb, T. E. 5
Morris, Edward E., 5
Risk Reduction Engineering Laboratory (U.S.) 5
United States. Army. Corps of Engineers. Little Rock District 5
United States. Department of the Army 5
United States. Environmental Protection Agency 5
United States. National Park Service, 5
United States. National Park Service. Natural Resource Stewardship and Science, 5
Arkansas Game and Fish Commission 4
Arkansas. Department of Health 4
Clark, Brian R. 4
Czarnecki, John B. 4
Czarnecki, John B., 4
Erickson, Ralph Leroy, 1923- 4
Funkhouser, Jaysson E. 4
Girty, George Herbert, 1869-1939, 4
Haggard, Brian E. 4
Hart, Rheannon M., 4
Hendricks, Thomas Andrews, 1907-1985, 4
Kilpatrick, John M. 4
Ludwig, A. H., 4
Merewether, E. A. 1930- 4
Moore, Martha A. 4
Neely, Braxtel L., 4
Ouachita National Forest (Agency : U.S.) 4
Pugh, Aaron L. 4
Remsing, L. M. 4
Terry, J. E. 4
Turner, Kenzie J. 4
United States. Administration on Aging 4
United States. Bureau of Labor Statistics 4