Lake Lanier is a large reservoir located in north-central Georgia on the Chattahoochee River, northeast of Atlanta. Created in the 1950s, the lake covers approximately 38,000 acres and serves as a major component of the Apalachicola–Chattahoochee–Flint river basin. Its proximity to a major metropolitan area makes it an important regional resource for water supply, recreation, and flood control.

The shoreline is long and irregular, characterized by numerous creek arms, wooded coves, and gently sloping to moderately steep banks. Submerged timber, long points, and defined river and creek channels shape the underwater structure, while a mix of developed and undeveloped shoreline contributes to varied habitat conditions. Open main-lake areas transition into narrower tributaries that support diverse aquatic environments.

Lake Lanier supports a highly diverse warmwater fishery, including well-established populations of largemouth bass, spotted bass, striped bass, crappie, and catfish. The lake is managed by the U.S. Army Corps of Engineers, which oversees water operations, shoreline use, and long-term resource management while balancing public access, hydropower needs, and regional water demands.