01343cam a22003131 4500 gs 47000205 DLC 20260227111352.0 790612s1947 sduab b s000 0 eng gs 47000205 (OCoLC)5057904 DLC TxCM OCoLC DLC WaU GB1027.S5 S6 South Dakota Geological Survey Ground water resources of the Sioux Falls area, South Dakota. Geology, by E. P. Rothrock; Hydrology by E. G. Otton. Vermillion, University of South Dakota, 1947. 2 pts. (iii, 108 p., 1 l.) illus., maps (2 fold. in pocket) diagrs. (1 fold. in pocket) Its Report of investigations, no. 56 At head of title: State of South Dakota. State Geological Survey. "Published in cooperation with the United States Geological Survey." Bibliography: leaf at end. Groundwater South Dakota Sioux Falls area. Water-supply South Dakota Sioux Falls area. Geology South Dakota Sioux Falls area. Rothrock, E. P. (Edgar Paul), 1889-1977. Otton, E. G. (Edmond George), 1918- Geological Survey (U.S.) Report of investigations (South Dakota Geological Survey) ; no. 56. 28168 28168