1784: M-48, Sima (M48)
Mullir 30T 455398 4795391 (Datum: ETRS89. Accuracy code: M) Altitude 718m (725m)
Length 35m Depth 31m
Area position : Logbook search

This site is described on the web site of the Sociedad Espeleológica Alto Duero who have explored it. It would appear that the entrance has been located with GPS but the altitude (in brackets above) is wrong when plotted on 1:5000 maps. This site also has the same grid reference to site 1782 and 1783.

A 10 x 5m entrance is a 22m pitch. At the base another pitch drops 9m to a choke.

Reference: SEAD website; file
Entrance picture: on the SEAD website
Underground picture(s):
Detailed survey:  elevation on the SEAD website
Line survey:
On area survey:
Survex file:

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