4190: Track Hole
La Secada 30T 452727 4797780 (Datum: ETRS89. Accuracy code: A) Altitude 147m
Length 1m Depth 1m
Area position

A shallow hole in the track partly covered with planks. It is very choked and has no draught.

Reference: anon., 2015c (summer logbook)
Entrance pictures : yes
Underground pictures:
Detailed Survey :
Line Survey :
On area survey :
Survex file :