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Crimbo Rock was located in the Big Mountains.
- This location appeared after receiving the Second Nightmare.
- Although its picture in the Big Mountains says Crimbo Rock, the title of the rock says CrimboRock.
- This area goes away after the third nightmare, and is replaced by Crimbotown Right-About-Now. Trying to adventure here once it has been replaced yields the message "No way, yo."
- This area becomes accessible again after receiving the time sleigh.
- If you attempted to adventure here after December 31, it would give you the message "Crimbo is over. Sorry."
- Crimbo Rock is a reference to the Jim Henson program Fraggle Rock. The image of CrimboRock especially looks like Marjory, the Trash Heap, the all-knowing guru that would help the Fraggles solve their problems. Jim Henson also helped create the Muppets, who produced a version of A Christmas Carol.
- The image of CrimboRock also resembles, perhaps unsurprisingly, a Christmas tree, with three ornaments and a star on top.