U.S. Department of the Interior

The U.S. Department of the Interior, established in 1849, is a federal agency tasked with managing and conserving most federally-owned lands and natural resources. The department's mission focuses on protecting and conserving lands, water, wildlife, and energy resources, promoting American self-reliance and economic advancement while honoring tribal, insular, and territorial government relationships. Its primary office is located in Washington D.C., with regional offices and facilities spread across the U.S. and its territories.