The Hurley's own a lumber mill and want to harvest all the timber in the valley. They kill the Forester and substitute their brother Dusty in his place. Dusty then says all the trees are infected and must be cut down. But Rex Allen is suspicious and writes to the Forestry Department and gets involved with the murders.
Unfortunately the movie Colorado Sundown is not yet available on HBO Max.
| Directing | William Witney | Director |
| Editing | Tony Martinelli | Editor |
| Production | Edward J. White | Producer |
| Sound | R. Dale Butts | Original Music Composer |
| Writing | Eric Taylor | Story |
| Writing | William Lively | Screenplay |
| Writing | Eric Taylor | Screenplay |
| Costume & Make-Up | Bob Mark | Makeup Supervisor |
| Art | Frank Hotaling | Art Direction |
| Crew | Theodore Lydecker | Special Effects |
| Costume & Make-Up | Adele Palmer | Costume Supervisor |
| Sound | Dick Tyler Sr. | Sound |
| Art | Charles S. Thompson | Set Decoration |
| Art | John McCarthy Jr. | Set Decoration |
| Crew | Howard Lydecker | Special Effects |
| Camera | John MacBurnie | Director of Photography |
