U.S. Department of the Interior
federal
202-208-3100
Department of the Interior 1849 C Street, N.W. Washington DC 20240
The Department of the Interior, comprising the eight bureaus: Manages 1 out of every 5 acres of land in the US. Provides the resources for nearly one-third of the Nation's energy. Works with 562 federally recognized Indian Tribes. Administers U.S. responsibility to four overseas Territories. Provides water to 31 million citizens through 824 dams and reservoirs. Receives over 450 million visits each year to 388 units of the national park system, 544 wildlife refuges and vast areas of multiple use lands. Provides opportunities for hunters and anglers, working to improve habitat on millions of acres of public and private lands.