The railroad actually has a themed indoor section with animatronics, unconventional for sure.
Tokyo had a trestle bridge long before Disneyland got one to fit around Galaxys Edge!
Part of the ride passes a few Western themed sets, like this Native American village.
The ride only has one station however, so it is more of a tour than a transport ride.
The Western River Railroad is Tokyo Disneyland's take on the Railroad attraction that encircles the original Disneyland.