Colorado Sundown (1952)
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.
Directed by: William Witney
Starring: Rex Allen, Koko, Mary Ellen Kay, Slim Pickens, June Vincent, Fred Graham
Links: IMDb, Movie posters, Movie stills