Identify Western Film--Hero Stresses That People Must Die Quietly

Title says most of it. I believe it may have involved Native Americans (as villains, probably!). Someone of the group is killed and cries out in either pain/anguish. Hero stresses to the others that you must not do that and later he (I think it was the hero) is killed (stabbed and thrown off a cliff, iirc) and falls silently to his death.

Saw it as a kid or teen, so mid-late 70s or before.

Thanks,

Sir Rhosis

The Devil’s Backbone?

No, that film is from 2001. Way too recent. Mine would be at least before 1980. Probably the 70s or 60s.

Thanks, though.

Sir Rhosis

No, not that Devil’s Backbone; this Devil’s Backbone.