Got my first Rainbow Caverns pin today!

If you don't know what Rainbow Caverns is it was a Mine Train ride in Frontierland a long time ago; it was then upgraded to Mine Train thru Nature's Wonderland which still took the train through Rainbow Caverns. The Caverns were filled with different colired lights, waterfalls and fountains and it had very haunting music. It was removed in the 70s when they built Thunder Mountain.
Unfortantly there are no colour films of the Caverns (just the outside Mine Train) but there are colour photos around. It must of been an amazing ride!