Which Georgia region is the only source of coal in the state?

The Georgia region that is the only source of coal in the state is the Appalachian Plateau. The Appalachian Plateau, also known as the Appalachian Plateau Province, is located in the northeastern part of Georgia. To find this answer, one could start by searching for information on the coal reserves in Georgia. Various sources such as government reports, geological surveys, and energy agencies provide details on the distribution and availability of coal resources in different regions. By narrowing down the search to Georgia's geological features and coal mining history, information about the Appalachian Plateau being the primary coal source in the state can be found.