Map showing oil, gas, and gas storage fields in Indiana
Base modified from U.S. Geological Survey base map of Indiana ; 1950. Compiled from Indiana Geological Survey Petroleum Exploration Maps of Indiana counties.; Includes Names and locations of oil and gas fields, Names and locations of gas storage projects, Underground storage sites for liquified petroleum gas. Scale 1:500,000; Lambert conformal conic projection
Carpenter, G. L.(Gerald Leon), 1924-2012, cartographer.