Travelers are voting San Joaquin Hills, Santa Ana Mountains and Santiago Peak as the best of 28 mountain ranges in Orange County. There are 36 mountain ranges near Rancho Cucamonga a city just 30 km from Orange County and 6 mountain ranges near Rancho Palos Verdes which is 30 km distant. The most popular of these are San Gorgonio Mountain near Rancho Cucamonga and Baldwin Hills in Rancho Palos Verdes. You can find 695 mountain ranges in California and 5141 mountain ranges in the country of United States. Our members favorite in California is Mount Shasta and Mount McKinley is the top pick in United States. Want more? Check out our map of mountain ranges in Orange County.