- HD 1080
- Runtime: 49m.
- Status: Released
- 1
- Languages: en
- Country: United States of America
- Director: Robert N. Bradbury
- Stars: John Wayne, Lucile Browne, George 'Gabby' Hayes, LeRoy Mason, Lloyd Ingraham
- keywords: undercover
- Production_studio: Paul Malvern Productions
- Slogan: A THRILLING LONE STAR WESTERN
- providers: Amazon Prime Video, fuboTV, Epix Amazon Channel, MGM Plus Roku Premium Channel, MGM Plus, FlixFling, Amazon Prime Video with Ads
- The Rainbow Valley is featured in the top rankings of 1935
- #7 in Top Western Movies of 1935
John Martin is a government agent working under cover. Leading citizen Morgan calls in gunman Galt who blows Martin's cover.