The Appalachian Plateau is indeed one of the primary coal-producing regions in Georgia, particularly in the northern part of the state. However, while it is a significant source, it's important to note that coal production in Georgia is relatively limited compared to other states in the U.S. Georgia's coal resources are less extensive than those of major coal-producing states like Pennsylvania or West Virginia.
In summary, the Appalachian Plateau is the main area for coal in Georgia, but it is not the only source of coal within the state, as there may be minor deposits elsewhere. However, the coal industry is not a major part of Georgia's economy today.