Nestled into the foothills of the San Gorgonio and San Jacinto Mountains, the reservation spans more than 32,000 acres and overlooks the vistas of the Banning Pass. Morongo Casino Resort and Spa offers Las Vegas-style gaming alongside upscale accommodations on the Morongo Indian Reservation. Morongo Resort and Spa is a Southern California luxury resort and casino near Palm Springs. Casino Morongo opened its new poker room and bingo hall to the public this week, both were parts of their recent renovation and expansion.