The study area, referred to as the headquarters area, incorporates the area from the south entrance station north to the Zion Canyon bridge. This includes the visitor center, the Watchman and South campgrounds, the amphitheaters, the nature center, the Oak Creek, Watchman, and Pine Creek residential areas, and the Oak Creek maintenance area. The study area encompasses approximately 325 acres. It includes a development zone (107 acres) and a natural zone (218 acres), and is surrounded by a proposed wilderness subzone.
United States Department of the Interior, National Park Service, "Zion Canyon Headquarters, Zion National Park, Utah, Draft Development Concept Plan, Environmental Assessment" (1993). All U.S. Government Documents (Utah Regional Depository). Paper 308.