The Presidio Trust is a United States Government corporation that manages the Presidio of San Francisco, a park and former military base located at the Golden Gate. The Presidio was established in 1776 by Spanish military leaders and was later used as a military base by the United States Army. In 1994, the base was decommissioned and the land was transferred to the National Park Service. The Presidio Trust was established in 1996 to manage the park and ensure its preservation for future generations.