In the closing credits, the very final scene shows the wagon train. A plane's contrail is plainly visible cutting through the clouds.
When Will carries Koewidinok in his arms along the outside wall of the fort from right to left, a covered wagon is seen at the far left edge of the building. At the rear of the canvas covering for the wagon, a full Panavision camera (but no crew) is seen mounted there on it facing to film forward - out of view, but observed here for a few seconds.
Right before the end credits roll, a scene from a previous episode shows deceased daughter Annabelle riding on one of the wagons heading west from Laramie.