Mine Train Through Nature's Wonderland

Mine Train Thru Nature's Wonderland was an attraction at Disneyland that ran from 1960 to 1979 when it was replaced by Big Thunder Mountain Railroad. The attraction itself was an expansion of the 1956 Rainbow Caverns Mine Train attraction and featured numerous wilderness environments and animatronic animals.

Legacy
When the attraction was replaced by Big Thunder Mountain, the new attraction would feature several references to it's predecessor.
 * The colorful caverns at the ride's beginning are a nod to the old Rainbow Caverns, though not quite as grand.
 * The town of Rainbow Ridge was preserved for use in Big Thunder Mountain and serves as part of the attraction's load area.
 * Though a different set of Tyrannosaurus bones, Big Thunder Mountain would feature a climactic splash down going through dinosaur ribs.

In addition, other remnants of the attraction were left behind and several portions still exist today, such as the Bear Country pond and train tunnel, and various rock structures of the Living Desert in the current Big Thunder Ranch. The Cascade Falls existed until the mid-90s when water damage and other structural issues forced it's demolition and an actual ride vehicle was on display for decades until the Disney Archives took it into storage for possible restoration and preservation.