After finding all the entrances, we headed back down the hill and into the hortizontal part of the cave to look at things from the bottom of the pit. The idea was to line up what we saw on the surface with what we could see from the bottom.
We found one truly amazing site at the bottom of the giant guano pile, a waterfall of cockroaches! The guano pile is so steep that it is just about ready to landslide, which is called the angle of repose. When the cockroaches burrow around in it, the physics changes and it slips downhill. Here on the upper left the roaches are cascading into a giant heap, they then work their way down and to the right, and those are highways of roached heading back up on the right. The video is amazing.
Getting late here, so I will end with a butterfly from the visitor's center
Keith Christenson - Wildlife Biologist