01099cam a22002771 4500 gs 50000104 DLC 20260227111356.0 780125s1949 okua 000 0 eng c gs 50000104 (OCoLC)3579891 U.S. Geol. Survey. Library TxEU DLC premarc QE153 .A2 no. 68 553.2 Knechtel, Maxwell M. (Maxwell McMichael), 1897- Geology and coal and natural gas resources of northern Le Flore County, Oklahoma. Norman, 1949. 76 p. illus., 2 fold. maps (in pocket) 5 fold. diagrs. (in pocket) 23 cm. Oklahoma Geological Survey. Bulletin 68 Investigation conducted under cooperative agreement between the Oklahoma Geological Survey and the Geological Survey of the United States Department of the Interior. Bibliographical footnotes. Geology Oklahoma Le Flore County. Coal Oklahoma Le Flore County. Natural gas Oklahoma Le Flore County. 28458 28458