This site has been explored and surveyed by the Grupo Espeleológico de Santander del C.A. Tajahierro. Their survey is published in Exploraciones en Solorzano (Santander) in Los Sótanos de la Tierra, No. 5, 1980, Santander (ref. 1980a). The site has been located but not explored by the Matienzo Caves expeditions.

Reference: anon., 2014b (Easter logbook)
Entrance picture : yes
Underground pictures :
Video :
Detailed survey : from 1980a
Line Survey :
On area survey :
Survex file :