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 |
| Writing | Eric Taylor | Story |
| Writing | William Lively | Screenplay |
| Writing | Eric Taylor | Screenplay |
| Production | Edward J. White | Producer |
| Sound | R. Dale Butts | Original Music Composer |
| Editing | Tony Martinelli | Editor |
| Art | Frank Hotaling | Art Direction |
| Sound | Dick Tyler Sr. | Sound |
| Costume & Make-Up | Adele Palmer | Costume Supervisor |
| Art | John McCarthy Jr. | Set Decoration |
| Art | Charles S. Thompson | Set Decoration |
| Crew | Howard Lydecker | Special Effects |
| Crew | Theodore Lydecker | Special Effects |
| Costume & Make-Up | Bob Mark | Makeup Supervisor |
| Camera | John MacBurnie | Director of Photography |
