Factual error: During the final shoot-out, when Raf shot the man on the roof as he enters town, the wrong flag is displayed - a 48 star flag, but the time setting is the 1880's, when there were fewer states.
Factual error: The action takes place in 1880, and our hero encounters a Sioux war party led by Red Cloud. In 1880, Red Cloud and his offspring were firmly ensconced on the Pine Ridge Reservation in South Dakota, dealing with the BIA.
Factual error: Wilford Brimley's saddle horn is wrapped in inter tube rubber, just as modern day teamropers.