1. Coal deposits on Sand and Lookout Mountains, Dade and Walker Counties, Georgia [cartographic material] Yale Public content 1946. 2018-06-22T19:42:52Z. 2018-09-05T20:07:29Z. Johnson, Vard H. U.S. Dept. of the Interior, Geological Survey. English. cartographic image. Public. Georgia, Dade County, Walker County, Dade County., and Walker County.