Walter F. George Lake, Reservoir on Chattahoochee River, Georgia and Alabama.

Walter F. George Lake is a 46,000-acre reservoir on the Chattahoochee River along the Alabama–Georgia line, held back by the Walter F. George Lock and Dam at its southern end near Fort Gaines. It runs about 85 miles north with roughly 640 miles of shoreline; Eufaula sits on the west bank and Georgetown on the east. Its clay, sand and rock bed shows through clear water that shades from reddish to dark green.

The Walter F. George Lock and Dam was built by the United States Army Corps of Engineers and completed in 1963, impounding the Chattahoochee River to form the reservoir. Before flooding, trees were cleared from the future lakebed, and the unincorporated community of Oketeyeconne, Georgia, home to many Native American residents, was evacuated in the 1950s. The dam serves flood control, hydropower, and a navigable channel.

The lake's name honors Walter F. George, a U.S. senator from Georgia (1878–1957). In Alabama, a state legislature resolution of June 25, 1963, gave the reservoir the name Lake Eufaula, after the city on the western shore. Before flooding, the unincorporated community of Oketeyeconne, Georgia, with a historically Native American majority, was evacuated in the 1950s.

The dam and lock stand at the southern tip near Fort Gaines, while the Eufaula National Wildlife Refuge occupies the northern stretch, where birdwatching, fishing and boat trips are possible year-round. State parks on both shores give access to the water: Lakepoint and the refuge in Alabama, Florence Marina and George T. Bagby in Georgia. The lake is clearest over clay and sand bottoms, with depths of 5 to 30 m.

The same body of water holds two official names depending on which state you are in: Walter F. George Lake in Georgia and Lake Eufaula in Alabama. This naming split came about following a 1963 state decision and reflects how the state boundary divides the identity of the reservoir.