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Dougherty Plain District


Atlantic Plain Major Division

Coastal Plain Province

East Gulf Coastal Plain Section

Dougherty Plain District

The Dougherty Plain is a northeast-trending, wedge-shaped, level to gently rolling lowland that pinches out where the Fall Line Hills and the Tifton Upland meet. The northwestern boundary is gradational from the Fall Line Hills and occurs where the slopes become more gentle and the relief is low; the 250 foot elevation approximates this boundary. The southeastern boundary is the base of the Pelham Escarpment which separates this distinct from the Tifton Upland. The region slopes southwestward with maximum elevations of 300 feet in the northeast to a minimum elevation of 77 feet at Lake Seminole. The flat to very gently rolling topography is interrupted by numerous sinkholes. Karst topography prevails in this district, and many sinkholes, still actively forming, are the sites of numerous ponds and marshes. The karst topography is formed on the underlying Ocala and Suwannee Limestones of Eocene and Oligocene age, respectively.

Source: William Z. Clark, Jr. and Arnold C. Zisa, Physiographic Map of Georgia (Atlanta: Georgia Department of Natural Resources, 1976).