3731: collapse
Secadura 30T 456597 4800797 (Datum: ETRS89. Accuracy code: A) Altitude 83m
Area position

A collapse with a fence around it.

Reference: anon., 2012d (summer logbook)
Entrance picture :
Underground picture :
Video :
Detailed Survey :
Line Survey :
On area survey :
Survex file :

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