AN-51
A vertical cavity integrated into the Añelarra System that, through a succession of pits, reaches a depth of -390 metres and connects with the bottom of the AN-6.
EspeleoWorld
AN-51
A vertical cavity integrated into the Añelarra System that, through a succession of pits, reaches a depth of -390 metres and connects with the bottom of the AN-6.
Isaba/Izaba
Sviluppo del sistema: 25800 m · Profondità del sistema: 739 m
Scheda aggiornata
https://espeleoworld.com/it/c/an-51-isaba-izaba
Le informazioni possono cambiare. Verifica sempre coordinate, accesso, meteo e condizioni della cavità prima di partire.
A vertical cavity integrated into the Añelarra System that, through a succession of pits, reaches a depth of -390 metres and connects with the bottom of the AN-6.
Descrizione
Morfologia
It is a vertical cavity that forms part of the important Añelarra System. Its entrance is very small and is divided into two parts that join at 4 m.
Idrologia
At the bottom, through a large fault, there is a small meander with a stream and a cascade in a slide.
Progressione
After a dig, a 50 m pit is reached; next, a constriction gives continuity to a series of verticals of 23, 27, 20, 15, 8, 29, 9 and 17 metres. A constriction and a climb lead to a large pit of 124 metres and to another of 93 m, reaching a depth of -390 metres. Then, through a large fault and the small meander at the bottom, it connects with the bottom of the AN-6 and with the whole of the Añelarra System, which reaches -614/739 metres.
Storia
1985: E.S.S, C.P.L.
1986: G. San Nicolás, ARSIP (S.C. Avalon).
199-2002: Interclub (B-NL).
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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