Aven Bob
Underground network with three entrances comprising a 40-metre shaft, two vast chambers and a bottom at -80, with a temporary stream that dries up in summer.
EspeleoWorld
Aven Bob
Underground network with three entrances comprising a 40-metre shaft, two vast chambers and a bottom at -80, with a temporary stream that dries up in summer.
Creissels
Length: 634 m · Depth: 80 m
Updated record
https://espeleoworld.com/en/c/aven-bob-creissels-aveyron
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Underground network with three entrances comprising a 40-metre shaft, two vast chambers and a bottom at -80, with a temporary stream that dries up in summer.
Description
Morphology
The cavity has a 1 m x 0.8 m opening and two other entrances, the 3rd having been discovered in 1972 by ALPINA. It presents a 40-metre shaft and 2 vast chambers, with a NW orientation and a bottom at -80. P = -67 ; L = 210.
Speleothems
The descending gallery of the classic network is cluttered with scree and speleothems.
Hydrology
The stream is temporary and dries up in summer.
Progression
The classic network begins with a 40-metre shaft in stages, continuing to the northwest by a descending gallery cluttered with scree and speleothems down to the -58 m level. To the south, on the right going down, an equipped 5-metre shaft gives access to a large chamber parallel to the previous gallery, the lowest point of the pit at -80 m. Towards the top of this gallery, shortly after the 5-metre shaft, on the right going down, a narrow joint leads to an immense passage of imposing cross-section and 75 metres long. A large ascending scree slope followed by a chimney extends this large gallery.
Other details
Source: CDS 12, record and survey of the cavity: http://cds12.org/topos/AvenBob.pdf
History
The 3rd entrance was discovered in 1972 by ALPINA. The cavity is named after a teammate of Louis Balsan.
User Comments (0)
No comments yet.
Be the first to share your experience!
Registered Explorations (0)
No explorations registered yet.
Register your visit to this cave!
Nearby caves
Contains information from Grottocenter (Wikicaves), grottocenter.org, made available under the Open Database License (ODbL 1.0, https://opendatacommons.org/licenses/odbl/1-0/), modified. · https://grottocenter.org/ui/entrances/25825 · The derived data is available on request under the ODbL: [email protected] · data as of 2026 · Source: Grottocenter (Association Wikicaves), worldwide collaborative cave database (grottocenter.org), modified. CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ Grottocenter (Wikicaves) · Text by BTH (Description par le CDS 12), Soufflet Benjamin (Autre description générale) · adapted by Espeleoworld (normalized, translated); the adaptation is licensed CC BY-SA 3.0, https://creativecommons.org/licenses/by-sa/3.0/ · https://grottocenter.org/ui/entrances/25825 · data as of 2026