00886cam a2200253 4500 gs 68000318 DLC 20260227111423.0 690523s1968 dcuab b 00010 eng c gs 68000318 //r85 U.S. Geological Survey Library QE75 .C5 no. 558 GB1825.N6 E49 Copy 2. Eisenlohr, William Stewart, 1907- Generalized hydrology of prairie potholes on the Coteau du Missouri, North Dakota, by Wm. S. Eisenlohr, Jr., and Charles E. Sloan. Washington, 1968. v, 12 p. illus., map. 26 cm. Geological Survey circular 558 Bibliography: p. 11-12. Ponds North Dakota. Potholes North Dakota. Sloan, Charles E., 1930- joint author. Geological Survey circular ; 558. 30525 30525