Department of Parks and Recreation, County of Los Angeles, California State Park Volunteers, and the Santa Monica Mountains Conservancy operate the various natural open space preserve parks and neighborhood recreation parks. Open-space parks Chatsworth Park North: includes more than of the scenic Simi Hills and is operated by the Los Angeles Parks Department, has three baseball diamonds, football field, and outdoor basketball courts, all lighted; volleyball courts, a children's play area, hiking trails, a jogging path, and picnic tables with barbecue pits. The park now has fencing that blocks visitors from climbing the large boulder outcrops, but Stoney Point Park and Chatsworth Park South are nearby for bouldering and rockclimbing. Chatsworth Park South: includes more than of the rocky landmark Simi Hills. Chatsworth Park South is adjacent to the Santa Susana Pass State Historic Park, a National Register of Historic Places property consisting of historic features and deposits, prehistoric village site remnants, and portions of the Old Santa Susana Stage Road, which was the main route for mail and travelers between Los Angeles and San Francisco from 1861 until the opening of rail connections between the two cities in 1876. The stage route was also declared Los Angeles Historic-Cultural Monument #92 (designated January 5, 1972) and Ventura County Historical Landmark #104 (designated October 21, 1986). The park has miles of horseback, jogging, and hiking trails, picnic tables and barbecue pits, and bouldering outcrops. Chatsworth Recreation Center facilities are located within the lower area of Chatsworth Park South, with lighted indoor basketball courts, lighted outdoor basketball courts, a children's play area, an indoor gymnasium, a stage, and lighted tennis courts. The Minnie Hill Palmer House, one of the West Valley's historic original homestead houses, is in Chatsworth Park South for visits and the Chatsworth Historical Society archives. The park had been closed from February 2008 to 2018 due to contamination discovered from when the park used to be a shooting range for Roy Rogers. Michael D. Antonovich Park at the Joughin Ranch: includes over 1600 acres of hiking, equestrian trails, creeks, waterfalls and the site of one of the historic Bannon Quarries. Santa Susana Pass State Historic Park (SSPSHP): a large natural area adjacent to and above the town's western side. The Santa Susana Pass State Historic Park protects and offers a historical site of the late 19th century, when Chatsworth was on a main thoroughfare for the figures of the