0958: Marina, Torca de la
Riva 30T 455268 4793071 (Datum: ETRS89. Accuracy code: M) Altitude 218m
Length 27m Depth 27m
Area position

Updated 18th January 2004

Shown in Actividades Regionales. Exploraciones en Cantabria (anon., 1993a) as site 25. Approximate grid reference taken from the map in the same booklet. A 25m pitch drops to a 2m deep small hole in the floor.

Reference: anon., 1993a (survey)
Entrance picture :
Underground picture(s):
Detailed Survey : from anon., 1993a (AEC Lobetum): high res   low res
Line Survey :
On area survey :
Survex file :