Complex sentence: At the Magic Kingdom, Big Thunder Mountain Railroad is almost an identical mirror image of the Disneyland version, except for having an enclosed loading station on a hillside, the replacement of Big Thunder with Tumbleweed, and altered section of layout before the second lift hill.
Split into simpler sentences: At the Magic Kingdom, Big Thunder Mountain Railroad is almost a mirror image of the Disneyland version. The only differences are an enclosed loading station on a hillside, the replacement of Big Thunder with Tumbleweed, and an altered section of layout before the second lift hill.