Tahquitz Canyon is located in Palm Springs, California on a section of the Agua Caliente Indian Reservation. The canyon descends from the Riverside County San Jacinto Mountains. It was continually inhabited for at least 5,000 years by the Native American Cahuilla people, and is one of many canyons of cultural significance to the Cahuilla. Today it is a na…Tahquitz Canyon is located in Palm Springs, California on a section of the Agua Caliente Indian Reservation. The canyon descends from the Riverside County San Jacinto Mountains. It was continually inhabited for at least 5,000 years by the Native American Cahuilla people, and is one of many canyons of cultural significance to the Cahuilla. Today it is a nature preserve open to the public that is overseen by the Agua Caliente Band of Cahuilla Indians.