Visible crew/equipment: During the sequence with the fire going on in the town, there is a shot with several guys on horseback riding parallel with the camera. They're talking while riding. Look at the lead horse. The shadow of the boom mic is extremely obvious. (00:15:45)
Visible crew/equipment: When Festus has put a false article regarding a gold strike and the people are rushing out of town, there is a shot in which the view is head on to the street full of riders and wagons as people are leaving town and the roof of the set is visible over the street instead of sky.