AN-506 Pozo de los Niños
Cavity in Añelarra, below the 2184-metre contour, discovered in 1977, with a "Monstre/Monstruo" pit of 259 metres and a horizontal development of 818 metres.
EspeleoWorld
AN-506 Pozo de los Niños
Cavity in Añelarra, below the 2184-metre contour, discovered in 1977, with a "Monstre/Monstruo" pit of 259 metres and a horizontal development of 818 metres.
Isaba/Izaba
Sviluppo: 818 m · Profondità: 410 m
Scheda aggiornata
https://espeleoworld.com/it/c/an-506-pozo-de-los-ninos-isaba-izaba
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Cavity in Añelarra, below the 2184-metre contour, discovered in 1977, with a "Monstre/Monstruo" pit of 259 metres and a horizontal development of 818 metres.
Descrizione
Morfologia
The cavity reaches a bottom at -410 metres, with a horizontal development of 818 metres. Its "Monstre/Monstruo" pit, with a vertical drop of 259 metres, is the second deepest of the massif, after Lepinuex, with a depth of 320 metres.
Progressione
The digging open of its entrance allowed reaching -32 metres; the following day -140 metres were reached, at the entrance of a larger pit of 200 metres. Later, 259 vertical metres are descended in the "Monstre/Monstruo" pit and, at -310 metres, a pit of 100 metres, with a bottom at -410 metres.
Storia
It was discovered in 1977 by members of the Speleo Club Avalón-Bélgica and their children. Later records: 1977/97/98 SC Avalon Bélgica, ARSIP and 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