01100cam a22003131 4500 gs 53000232 DLC 20260227111400.0 860225s1953 dcuab b 000 0 eng c gs 53000232 (OCoLC)13193333 U.S. Geol. Survey Libr. TxHR DLC premarc QE75 .C5 no. 228 TN805.W8 M35 Copy 2. 553.2 Mapel, W. J. (William Jameson), 1922- A thick coal bed near Lake De Smet, Johnson County, Wyoming, by William J. Mapel, James M. Schopf, and James R. Gill. Washington, 1953. iii, 47 p. illus., maps. 27 cm. Geological Survey circular 228 Part of illustrative matter is folded in pocket. "Correction" slip inserted, p. iii. Bibliographical footnotes. Coal Wyoming Johnson County. Geology Wyoming Johnson County. Borings Wyoming Johnson County. Geological Survey (U.S.). Circular ; 228. 28769 28769