Martin Lake in Tatum, Texas is a reservoir situated on the Sabine River that was created in the 1970s for flood control and hydroelectric power generation. The lake has a surface area of 5,930 acres and a maximum depth of 40 feet. It is fed by the Sabine River, which also supplies water to nearby Lake Palestine. Martin Lake has a surface flow component that is augmented by rainfall and snowmelt runoff, with the Sabine River providing the primary source of flow. The lake has important recreational and agricultural uses, including fishing, boating, and irrigation for local farms. The surrounding area is rich in natural resources, including forests and wildlife habitats, and attracts visitors from across the state for outdoor activities.