Looks like something from the innards of a cow
The cave that we already knew of – lets call it “Spanky’s Paradise” as a working name (subject to change, but convenient for discussion), was new to Jeff and so we wandered around a bit, photographed and generally absorbed the bone numbing cold from the rock.
At a certain point the tunnel jogs sharply to the right and there are rimstone dams all round. The tunnel forks shortly after this and to the right there is a narrow cleft that makes for treacherous crawling. To the left there is a trough, swept free of formations, likely a conduit for water at some time of the year. We resolved to continue on for some distance at a later date – possibly along the cleft as it seems to open out a bit further on and if we can hit a tunnel running perpindicular we are on a one way trip to wonderland.