Likeable cowboy star Bob Steele is the lead in this unusual western, directed by his father, Robert N. Bradbury. It’s a lost-race tale in which Bob Harding (Steele) is framed for the murder of an archaeologist who possesses a map to the valley of the title, which supposedly contains gold, silver, turquoise, and opals. Harding escapes from custody, however, and then sets out to find the archaeologist’s real murderer. The true star of the movie, though, may be the Goodyear blimp Volunteer, which is brought in to help in the manhunt for Harding but goes on to play a bigger role. Certainly of interest for fans of lighter-than-air craft.

  Mildly recommended. Otto judiciously thinks this movie is OK.