Denison Dam is a concrete dam located on the Red River in Texas, USA. Completed in 1944, it was built primarily for flood control, water supply, and hydroelectric power generation. The dam creates Lake Texoma, one of the largest reservoirs in the United States, which serves recreational purposes and supports local wildlife. The dam is operated by the U.S. Army Corps of Engineers and plays a crucial role in managing water resources in the region. It helps regulate river flow, reducing the risk of flooding downstream while providing water for irrigation and municipal use.