After a film noir period, William Castle began his western period with this "Cave of Outlaws", his first movie shot in color. It has a great script written by Elizabeth Wilson, Richard Wilson's wife (she has written for him "Invitation to a gunfighter" and "Raw wind in Eden", and that's all her cinema career). It tells the Wells fargo robberry, with money hidden in the fantastic Carlsbad Caverns with terrific views (and in some other parks too), lot of twists with complex characters. Fine story, great settings, but the two main actors aren't the best in western, Macdonald Carey and Alexis Smith. Yet, to be seen.