The Underground Booty Squad
This cave is the most interesting of the row of brewery/mushroom caves along the south side of the Mississippi. Technically, it has four levels. There is the main level, with large rooms, a system of crawl tunnels underneath it that connect to the main rooms through holes in the floor, and a ladder leading straight up from the center of one of the rooms to a crawl tunnel that leads to a shaft with footholds leading up even higher to a short dead-end crawl passage. There are also crawl tunnels between ledges above some of the rooms in the back. Very unusual, as far as these caves go.
-Tunnelcity, 2004