During the late forties and into the fifties, the U.S. Bureau of Mines (USBM) and the Alabama Power Company conducted a series of underground coal gasification burns in the Pratt and America coal beds at Gorgas,i. Alabama. Following the first burn, by the so called "stream method," it was feasible to enter the burned out areas by deep mining and assess what had taken place during the operation of the test site. In the latter tests, however, it was not economically feasible to explore the burned out areas except by means of core drilling. Now, in early 1981, an opportunity has become available to engineers interested in the UCG process to further evaluate there old sites.