Tony shot this video of moisture coming in the Natural Opening. We had some very light sprinkles this morning and that upped the humidity here.

I also forgot two things in my post that I found interesting:

1. Snottite is a cave feature I didn’t know about until today. Extremophiles (archaebacteria that live in inhospitable environments and are very cool to study) form these small stalactite-looking stretchy drips as they feed off of hydrogen sulfide gas and produce sulfuric acid as waste. Don’t touch those!
2. I saw a sign titled An Imperfect Balance that described the human impact on this cave environment. In the 1930s one thought was to blast a tunnel through the cave for car traffic, but they installed an elevator instead, which sounds much less disturbing. The elevator shaft dried out the cave, however, which would halt any further formation. Airlocks installed in the 1970s fixed the humidity problem. Now there is worry about groundwater contamination and, of course, the fungus that causes white-nose syndrome in bats which caves across the US have to protect against.