AN-73
Large entrance in the funnel on the north flank of Añelarra/Anielarra, with two pits and a vertical that reaches -210 metres.
EspeleoWorld
AN-73
Large entrance in the funnel on the north flank of Añelarra/Anielarra, with two pits and a vertical that reaches -210 metres.
Isaba/Izaba
Sviluppo: 248 m · Profondità: 211 m
Scheda aggiornata
https://espeleoworld.com/it/c/an-73-isaba-izaba
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Large entrance in the funnel on the north flank of Añelarra/Anielarra, with two pits and a vertical that reaches -210 metres.
Descrizione
Morfologia
The cavity opens in a large funnel. After the narrow passage between the wall and the snow, two pits follow, the first of 12 metres and the second of 31 metres; a narrow passage sits above a 130 m vertical with a subterranean glacier.
Progressione
The large funnel had been visited by several teams, but none had been able to cross the snowfield. The ES. S. Nicolás expedition and the little snow of 1986 made it possible to find the narrow passage between the wall and the snow that connects with two pits, the first of 12 metres and the second of 31 metres, and a narrow passage sits above a 130 m vertical with a subterranean glacier, a passage that allows reaching -210 metres (ARSIP).
Storia
1971: Institución Príncipe de Viana.
1986: E.S. St-Nicolas- PV.
ARSIP.
2009.
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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