When the stage crashes, Judith lands on the ground away from the wreck - as seen when it happens, and in the long shot of when the trio discovers the scene. But in closer shots she is only within a foot or two of the wrecked coach.
Near the beginning of the movie, the covered wagon leaves town just as the stagecoach arrives. The stagecoach is then stolen and goes in the opposite direction as the wagon, yet the wagon overtakes the stagecoach after it crashes. The wagon had come in from the mine to pick up supplies, had stopped at the store and was just leaving the store. As the stage passes it the wagon can be seen bearing right as if starting a turn to possibly go back in the opposite direction to return to the mine and follow the stage's direction.
When Judith Burns arrives at the mining camp, full of isolated men, and desperate not to go back to prison she is allowed to stay at the camp. She doesn't appear to be assigned any duties nor does this extremely attractive and desperate woman attract any male attention from the men in the camp.
When the escaped convict Judith Burns is confronted by the sheriff, she knocks him down and escapes by stealing a stage coach. The sheriff decides to just let her go. Not only is she wanted for her prison break but she has just made off with the stage coach. A law officer would have been duty bound to go after for one or both of these offenses.