PT-40
Vertical cavity with a 7x 8 metre entrance and several chained shafts down to a choked bottom at -92 metres.
EspeleoWorld
PT-40
Vertical cavity with a 7x 8 metre entrance and several chained shafts down to a choked bottom at -92 metres.
Ergoiena
Sviluppo: 45 m · Profondità: 92 m
Scheda aggiornata
https://espeleoworld.com/it/c/pt-40-ergoiena
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Vertical cavity with a 7x 8 metre entrance and several chained shafts down to a choked bottom at -92 metres.
Descrizione
Morfologia
Vertical cavity with a 7x 8 metre entrance, developed along a 30 metre long north-south joint.
Idrologia
A chamber collects the water coming from the other gallery of a shaft with a bottom at -77 metres.
Progressione
The cavity presents a 22 metre deep shaft with a boulder ramp and a new 17 metre shaft, at the bottom of which two galleries start. One of them, through a narrow window, leads to other shafts of 22 and 15 metres, with a choked bottom at -92 metres. Along the other gallery there is a 15 and 5 metre shaft, which connects with a chamber.
Storia
1988 G. Arrastakán de Echarri Aranaz
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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