United States Department of the Interior

The United States Department of the Interior (USDOI) is an organization founded on March 3, 1849, and it is a part of the Federal government of the United States. The organization is headquartered in the Main Interior Building, located in Washington, D.C.. The USDOI is an instance of an organization within the country of the United States.

The USDOI has several subsidiaries, including the United States Geological Survey, United States Bureau of Reclamation, National Park Service, Bureau of Land Management, and United States Fish and Wildlife Service. The primary aim of the USDOI is to ensure the proper management and conservation of the nation's natural resources and cultural heritage.