01288cam a22003011 4500 gs 30000001 DLC 20260227111334.0 790426s1929 dcua f001 0 eng c gs 30000001 (OCoLC)4899978 U.S. Geol. Survey Libr. NdU OCoLC DLC n-us-nd TC801 .U2 no. 598 Simpson, Howard E. (Howard Edwin), 1874-1938. Geology and ground-water resources of North Dakota, by Howard E. Simpson. With a discussion of the chemical character of the water, by Harry B. Riffenburg. Prepared in cooperation with the State geological survey of North Dakota. A. G. Leonard, director. Washington, U.S. Govt. print. off., 1929. v, 312 p. incl. illus., tables. 3 pl. (incl. fold. map) 23 cm. Geological Survey (U.S.). Water-supply paper 598 At head of title: United States Department of the Interior. Map folded in pocket. Geology North Dakota. Water-supply North Dakota. Groundwater. Riffenburg, Harry Buchholz, 1891- . North Dakota Geological Survey Water-supply paper (Washington, D.C.) ; 598. 26767 26767