Mountain Crest Apartments for rent in Fontana, CA on ForRent.com: (866) 386-1218 - Availability, pricing and special promotions subject to change daily. Mountain Crest townhome apartments in Fontana, California is conveniently located and offers large two-story two bedroom apartments. The community also offers a sparkling pool and available refrigerators and garages all within the gated community. Call for more details! - 8888 Citrus Ave.