sentences:  Simi Peak is located in eastern Ventura County, California, near the cities of Simi Valley to the north, and Thousand Oaks to the west.Chatsworth Peak is a peak that is also located in Simi Hills, on the far eastern edge.Escorpión Peak (Castle Peak) is closer in the hills, at 1,475 feet (450 m) and located in El Escorpión Park to the east.