Tahquitz Canyon is on the Agua Caliente Band of Cahuilla Indians Reservation, west of Palm Springs, California, at the base of the San Jacinto Mountains, located at 500 W. Mesquite. It is open to the public through guided tours. "Lost Horizon" utilized the first waterfall in the canyon.
"Lost Horizon" (Columbia 1937) Directed by: Frank Capra. Cast: Ronald Coleman, Jane Wyatt, Edward Everett Horton, Thomas Mitchell, Sam Jaffee.