The Pensacola Dam is a significant structure located on the Grand River in northeastern Oklahoma. Completed in 1958, it was built to control flooding, generate hydroelectric power, and provide recreational opportunities. The dam creates Lake Hudson, a popular spot for fishing, boating, and camping. 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 is part of a larger system of dams and reservoirs designed to enhance water quality and support local ecosystems while benefiting the surrounding communities.