257 Shaft
Riaño VN53279993 Alt. 378m  Length 10m Depth 9m

A shaft capped with boulders. The 9m pitch is broken by a bouldery ledge; the continuation lands on a choked floor. A short length of passage at the bottom chokes.

References : anon., 1981 (logbook); Corrin J, 1983c
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