When The Sheriff is telling the story of the cattle rustlers, one of the reporters sitting on the bed has his left arm wrapped around the bedpost. But on the following cut, the orientation of the arm has now changed.
When Jane is driving Frank to the mine, the back and front windows on the driver's side are partially open. But on the next cut when she arrives, the windows are now closed.
When Kingman conspires with his henchman to rob the bank; he informs them that the bank opens at 9 am and they will rob it at 10 am. The next morning the townspeople, after being warned by Dawson, show up at 9 am when the bank opens and withdraw their money. But when the Kingman gang arrives; the bank hours printed on the window states that it opens up 10 am.