Department of the Interior

Purpose: To manage Federal land (amounting to about one-fifth of the entire U.S.), waterways, Indian Reservations & to conduct research concerning the use of resources

Established: March 3, 1849

Annual budget: $16.4 billion annual budget, with “$6.3 billion in revenues collected from energy, mineral, grazing, timber, recreation, land sales, etc.”

Structure: A Decentralized agency, headed by a Secretary (Dirk Kempthorne) and a Deputy Secretary (P. Lynn Scarlett); broken down into various Bureaus including the Bureau of Indian Affairs, National Park Service and U.S. Fish and Wildlife Service