Vandenberg Air Force Base is headquarters for the 30th Space Wing. The 30th manages Department of Defense space and missile testing, and placing satellites into polar orbit from the West Coast, using expendable boosters. Vandenberg is located on California's "Central Coast". Vandenberg and central California's residents consider the climate mild. The 150 square-mile area between San Francisco and Los Angeles is surrounded by the Santa Ynez mountains, the Pacific, and ranches of northern Santa Barbara and San Luis Obispo counties.