I remember hearing that the story of BTM had more representation back when it first opened in 1979. Exactly how was the story represented (any pictures?) and when was this stuff removed?
The story for those who don't know is basically:
"Though the details of the backstory vary from park to park, all follow the same general story arcs. Some time in the late 1800s, gold was discovered on Big Thunder Mountain in the American southwest. Overnight, the small mining town of Tumbleweed (Thunder Mesa at Disneyland Paris) was established and the Tumbleweed Mining Company staked their claim. Mining was prosperous and an extensive line of mine trains were set up to transport the ore. Unbeknownst to the settlers, the Mountain was a sacred spot to local Native Americans and was cursed. Before long, the settlers' desecration of the mountain caused a great tragedy, (terrible earthquake or flash flood, depending on the park) which befell the mines and town and they were abandoned. Some time later, the locomotives were found to be racing around the mountain on their own, without engineers or a crew. The Big Thunder Mountain Railroad was founded in the old mining camp to allow tourists to take rides on the possessed trains."
This was taken from Wikipedia. I know one fact is incorrect: the town is called Big Thunder, not Tumbleweed.
I basically knew the story before reading this, and I find it interesting that my Top 4 Disney rides (HM, IJA, POTC, BTM) are all based on supernatural themes.