Aven des Trois Gros (BZ 1)
A cave beginning with a 9-metre pit leading, through a series of pits and short drops, to a temporary stream obstructed at -52 by a calcite flow.
EspeleoWorld
Aven des Trois Gros (BZ 1)
A cave beginning with a 9-metre pit leading, through a series of pits and short drops, to a temporary stream obstructed at -52 by a calcite flow.
Mouthoumet
Sviluppo: 100 m · Profondità: 52 m
Scheda aggiornata
https://espeleoworld.com/it/c/aven-des-trois-gros-bz-1-mouthoumet
Le informazioni possono cambiare. Verifica sempre coordinate, accesso, meteo e condizioni della cavità prima di partire.
A cave beginning with a 9-metre pit leading, through a series of pits and short drops, to a temporary stream obstructed at -52 by a calcite flow.
Descrizione
Morfologia
The cave begins with a 9-metre pit (15-metre rope) that leads to a block-covered ledge in a joint that widens eastward to form a small chamber. To the west, a passage beneath a slab regains the vertical joint forming a P 13 (20-metre rope). A new 7-metre pit with short drops emerges at -34 in a small chamber. The descent continues through a few opposing moves followed by three successive short drops (R4, R3 and R3) that lead into a temporary stream following a fault that widens upward. After 30 metres, a large calcite flow obstructs the passage at -52. This last section contains several chimneys, one of which has not been fully climbed.
Concrezioni
A large calcite flow obstructs the passage at -52.
Idrologia
The first temporary active stream flows in a gallery dug along a bedding plane (30° south dip). The cavity is probably part of the catchment area of the Caulière spring and, in flood, of the Vignevielle vent.
Progressione
The P 13 (20-metre rope) is done as an exposed opposing move. The 7-metre pit with short drops is also descended by climbing (equipment recommended).
Altri dettagli
Geology: Upper Devonian limestone. Intense corrosion has shaped numerous sharp blades throughout the cave.
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Grotte vicine
Fonte: BRGM BDCavité (inventaire des cavités souterraines), via Géorisques (www.georisques.gouv.fr), modificato. Licence Ouverte 2.0, https://www.etalab.gouv.fr/licence-ouverte-open-licence/ Ministère de la Transition écologique, de la Biodiversité et des Négociations Internationales sur le Climat et la Nature – données Géorisques (BRGM), mise à jour du 2026-10-16 · dati aggiornati a 2026 · Contiene informazioni da Grottocenter (Wikicaves), grottocenter.org, rese disponibili con la Open Database License (ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/), modificate. · profondità, sviluppo, nomi · ottenuti il 2026-10-19 · https://grottocenter.org/ui/entrances/34526 · I dati derivati sono disponibili su richiesta con licenza ODbL: [email protected] · dati aggiornati a 2026 · Fonte: Grottocenter (Association Wikicaves), worldwide collaborative cave database (grottocenter.org), modificato. CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ Grottocenter (Wikicaves) · Testo di Cds 11 (Description générale), BTH (Géologie et hydrogéologie) · adattato da Espeleoworld (normalizzato, tradotto); l'adattamento è rilasciato con licenza CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ · descrizione · ottenuti il 2026-10-17 · https://grottocenter.org/ui/entrances/34526 · dati aggiornati a 2026