Updated 22nd May 2025

   A small hole at the top side of the recently enlarged track from Calzadillas through to Bosmartín. The hole has been filled from the excavations and is a crawl that immediately chokes.
    A significant outward draught was noticed at Easter 2025 and it was thought that the site is a potential dig, but likely to be quite a bit of work. There is easy vehicle access - park right by the entrance!

Reference: anon., 2006f (Christmas logbook); anon., 2025a (Easter logbook)
Entrance pictures : 2006, 2025
Underground pictures :
Video :
Detailed Survey :
Line Survey :
On area survey :
Survex file :