1670: dig
Riaño 30T 452524 4799670 (Datum: ETRS89. Accuracy code: G) Altitude 240m
Area position : Logbook search

Updated 3rd November 2002

A srongly draughting, excavated sink. The site is in an interesting position over Hoyuca but could require a lot of work. There appears to be no draught after wet weather.

Reference: anon., 2001c (Summer logbook); anon., 2002b (summer logbook); Corrin Juan, 2003a; anon., 2012d (summer logbook)
Entrance picture: distant  closeup 1   closeup 2
Underground picture(s):
Detailed survey:
Line survey:
On area survey:
Survex file:

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