This is some upper paleo-passage with sand over clay floors, and ceiling heights that rarely exceeded 4'.
Jan. 2003, Transit (Lounsbury)
Jan. 2003, Round Room (Miller)
The information in this report on surveying in UL1 may just be the best news that has yet come out of the "Back Entrance to Carroll" story. Why? Because it reports the finding of several cavefish--2-3 in every pool checked--which reconfirms that Carroll Cave may indeed be the most important cavefish site in Missouri. --Commentary from Jerry Vineyard