Updated 22nd September 2023; 26th September, 28th November 2024

   A strongly draughting, excavated shaft right next to the first dogleg on the northern road out of the Matienzo depression. There is a lot of neatly stacked spoil visible from the road.
The dig was left to stabilise at about 3m deep.
   In the summer 2023 the dig, with a good draught, was deepened over 2 sessions to about 5m with lots more work to do. Further work was carried out in the summer 2024 when a way into a low chamber was cleared and a rift dropped into a passage. One way leads up-slope and appears to be an inward route for water. Other way leads down-slope to a draughting rift. Photos taken and a survey completed.
   In late October, 2024, only a weak draught was detected.

Reference: anon., 2004d (summer logbook); anon., 2023c (summer logbook); anon., 2024d (summer logbook); anon., 2024e (autumn logbook)
Entrance picture: 2004
Underground pictures: 2024
Video:
Detailed Survey : 2024
Line survey:
On area survey:
Survex file: 2024