Rio Conchos. Starring Richard Boone and Stuart Whitman.
This page had Gunslinger starring Beverly Garland and John Ireland at one time so some of the comments may be about that western movie.
Beverly Garland gives a top notch performance as a female sheriff, out to fight crime and Allison Hayes in a post civil war town in Roger Corman’s low budget but lurid western. Also features John Ireland and many Corman acting alumini.
This page at one time had the wonderful western movie – Comanche Territory starring Maureen O’Hara and Macdonald Carey so some of the comments may be about that movie.