Black Horse Canyon was adapted from The Wild Horse, a novel by Lee Savage Jr. Joel McCrea stars as novice rancher Del Rockwell, who takes it upon himself to capture a magnificent wild black stallion who has been spiriting mares away from other ranchers. Rockwell hopes to use the stallion for stud purposes, as does his disreputable neighbor Jennings (Murvyn Vye). Also desirous of corralling the stallion for her ranch is Aldia Spain (Mari Blanchard), who throws in with Rockwell. An exciting climax which reveals everyone's true nature caps this beautifully photographed western.
~ Hal Erickson, All Movie Guide