False 1623-2006-72 1623 4 1/T + 2006-72 1623-2006-72 Unknown, and CUCC 2006, 2007 (Jenny) Stooping-size horizontal entrace, draughts outwards a bit. Apparently continues some distance, but has a "+" mark of unknown provenance suggesting it doesn't go too far. In dataset caves/2006-72/2006-72.svx kratzer/2006-72/2006-72.html kratzer/2006-72/2006-72.html