Comanche Creek Mine

ELLISON, JR. SULPHUR IN TEXAS. BUREAU OF ECONOMIC GEOLOGY,HANDBOOK NO. 2, JANUARY 1971, 48PP.MODERN SULPHUR MINING. TEXAS GULF SULPHUR CO., NEW YORK,N.Y., 1952, 24PP.U.S. BUREAU OF MINES. MICROFILM COMPILATION OF CONFIDENTIALINDIVIDUAL PRODUCTION STATISTICS.HAZLETON, JARED E, 1970, THE ECONOMICS OF THE SULPHURINDUSTRY PUBLISHED BY RESOURCES FOR THE FUTURE, INC.FIELD TRIP NOTES FROM JOE SOPER AND MIKE SAWYER FOR VISIT TOCOMANCHE CREEK, SEPT. 1982.ELF AQUITAINE, INC. 1983 ANNUAL REPORT. P. 12.KURT LINN, ASSISTANT TO THE PRESIDENT, TEXASGULF INC.;10/14/87 TELEPHONE CONVERSATION WITH LEE OSMONSON.U.S. BUREAU OF MINES. COMPILATION OF PROPRIETARY, INDIVIDUALCOMPANY, PRODUCTION STATISTICS (FOR THE YEARS 1982 AND1983).MINING ENGINEERING, MAY, 1995, P407.