Whoa! Part of the Natural Entrance Route of Carlsbad Caverns National Park collasped! In a followup article, the Albuquerque Journal reports that they hope to have the debris cleared by this weekend. This is fortunate, because I'm bringing some friends there on Sunday.
I'm a bit worried because Cliff has organized a special trip to the Guadalupe Room for us, and from what it sounds like, the three ton boulders are very close to the entrance to the Guadalupe Room.

