Surveys and Rigging Guides
Notes in 2000#34
Underground Description
Horizontal, walk-in phreatic tube dipping to S and trending 190°. 40m long, 4m wide, 1.5 to 2m high. Choked at end.
Underground Centre Line
In dataset
Explorers
Almost certainly seen before, but recorded CUCC 1990
Scanned survey notes
1623-172