Mystery Mountain is a 1934 American Western serial film directed by Otto Brower and B. Reeves Eason and starring Ken Maynard, Verna Hillie, Syd Saylor, Edward Earle, and Hooper Atchley. Distributed by Mascot Pictures, the series was a remake of Mascot's film The Hurricane Express (1932). Mystery Mountain features the second film appearance by Gene Autry.