00865cam a22002771 4500 gs 42000011 DLC 20260227111347.0 790420s1941 nduab b s000 0 eng c gs 42000011 (OCoLC)4877236 U.S. Geol. Survey. Library MnMohC MnMohC DLC premarc n-us-nd QE149 .T55 557.84 Tisdale, Ernest Edward, 1916- The geology of the Heart Butte quadrangle, by Ernest E. Tisdale. Grand Forks, N.D., U. N. D. Press, 1941. [3]-32 p. incl. tables, diagrs. fold. map. 23 cm. North Dakota Geological Survey. Bulletin 13 Bibliography: p. 31-32. Geology North Dakota. Sand. Sedimentation and deposition. 27759 27759