Continuity mistake: When the trio encounter the law officers from the Wyoming Stock Growers Association, it starts snowing while they're talking to each other. After the gun fight, it's sunny.
Character mistake: Captain is warning German travelers about poison oak and ivy, but holding up the leaf of an oak tree.
Question: At the beginning, when Dutton wakes up on the battlefield, was it that he was just knocked unconscious by either the concussion of an artillery round or even the butt of a musket?