 The western district is adjacent to the Valles Caldera National Preserve, which is administered by the National Park Service.Bandelier National Monument was created from a portion of Santa Fe in 1916, but additional land was added to Bandelier from land that was formerly part of Los Alamos National Laboratory and from land that was owned by the Dunnigans when they owned the Baca Ranch.The Coyote Ranger District is the northernmost district of the Santa Fe National Forest and covers 265,100 acres (1073 km²).