"Things You Wouldn't Know If We Didn't Blog Intermittently."
Given that's Yellowstone, I couldn't stop but get reminded that it's a megacaldera (aka supervolcano). I would like to visit Yellowstone one day as well, it looks pretty awesome.
I have been there it is very very neat. Unfortunately it isn't nearly as beautiful standing next to it as it is from the air, but still worth seeing if you are in Yellowstone.