The Bureau of Reclamation is a federal agency within the United States Department of the Interior. Established in 1902, its primary mission is to manage water resources in the western United States. The agency focuses on constructing and maintaining dams, reservoirs, and irrigation systems to support agriculture, municipal water supply, and hydroelectric power generation. The Bureau plays a crucial role in water conservation and management, especially in arid regions. It oversees projects like the Hoover Dam and the Central Valley Project, which help provide water to millions of people and support local economies.