4258: collapse
Ideopuerta 30T 446749 4796314 (Datum: ETRS89. Accuracy code: G) Altitude 357m
Length 2m Depth 2m
Area position

Updated 9th May 2016

   A 2m deep dig in the base of a recent collapse. After work at Easter 2016, there is still no bed rock showing.

Reference: anon., 2016b (Easter logbook) (November 2015 logbook account pasted here); ; anon., 2016b (Easter logbook)
Entrance pictures :
Underground pictures :
Video :
Detailed survey :
Line Survey :
On area survey :
Survex file :