Continuity mistake: During the cemetery scene a wide shot shows the Tetons in the background almost cloud covered, and a few minutes later as everyone leaves the funeral to fight the fire, the wide shot shows the mountains clear.
Continuity mistake: During the fight scene in the bar near the end, the dirt smears on the young boy's face change several times from shot to shot.
Continuity mistake: Before the Swede picks up Torry after he has been shot down in the mud by Wilson, his coat, arms and pants are all wet. But in the shot as he moves to pick up Torry they are all bone dry. Apparently the scene in the movie was a retake because Torry's body had already got the Swede wet in an earlier take.
Continuity mistake: When Jack Wilson looks outside over the swinging doors of the bar he's wearing a right side only gun and belt, not the double gun belt.