List of Altamont Hotel Stores in Castaic, CA Outlet Note Regular Brands Altamont Hotel California Castaic Rating 4.9 based on 65 votes Official Website http://altamonthotels.com Products Hotels Motels NameAddressPhone Name/Address/Phone Altamont Hotel outlet - Castaic 32430 Sierra Oak Trl (661) 775-4999 People Also Viewed