By "Little Mudhens", do you mean the outside-frame 2-8-0's acquired from the Crystal River RR?
Which reminds me, what was the motive power for the Queeble (or Kweeble?) Tram that hauled the marble from the quarry down to the RR?
The first few times I visited the quarry, in the late 1960's and early '70's, it was very accessible. It was easy to imagine filming the "Mines of Moria" scenes from "Lord of the Rings" there. By the mid eighties, it was fenced off, and I presume this is still the case.
- El Balrogo Curmudgeono