De Otromin
Pit in a strong limestone pavement with beeches, near the borda de Otromin, with an entrance of 8 by 9 metres and an absolute vertical drop of 40 metres.
EspeleoWorld
De Otromin
Pit in a strong limestone pavement with beeches, near the borda de Otromin, with an entrance of 8 by 9 metres and an absolute vertical drop of 40 metres.
Sierra de Aralar
Sviluppo: 50 m · Profondità: 43 m
Scheda aggiornata
https://espeleoworld.com/it/c/de-otromin-sierra-de-aralar
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Pit in a strong limestone pavement with beeches, near the borda de Otromin, with an entrance of 8 by 9 metres and an absolute vertical drop of 40 metres.
Descrizione
Morfologia
The pit has an entrance 8 metres long by 9 metres wide, oriented S-W/N-E. An absolute vertical drop of 40 metres leads to the bottom of the shaft. After passing a 2-metre step, there is a small shaft of no interest. Continuing through a low passage, one reaches a step from a large block into an ascending gallery with many blocks that becomes blocked at 10 metres. It seems that this gallery, with an identical shape to the entrance shaft, connects with it metres higher up. Ascending the entrance shaft for 20 metres, a window can be seen. Entering it reveals a meander, a 3-metre shaft, after which it opens into a gallery 6 metres long. This gallery ends in a 10-metre chimney and a crawlway that is at first impracticable.
Storia
1993 GES/CDN
2009 Investigación Aralar G.Satorrak-CDN
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Fonte: Gobierno de Navarra – Catálogo espeleológico de Navarra (datosabiertos.navarra.es), modificato. CC BY 4.0, https://creativecommons.org/licenses/by/4.0/ Gobierno de Navarra · dati aggiornati a 2022