Some of the land, 52 acres (21 ha), was given to Mission San Antonio de Padua, bringing its size to 85 acres (34 ha). Additionally, land has been traded between the United States Forest Service, which owns the adjacent Los Padres National Forest, and the Army. Junipero Serra Peak is to the north and Bald Mountain to the south. The fort also contains the headwaters of the Nacimiento River and San Antonio River. The opening helicopter scene of "We Were Soldiers" was filmed at the old Bailey Bridge spanning the San Antonio.