Trou Blion
Cavity with a narrow entrance 0.7 m by 0.4 m, with an old calcite flow, leading to a tiny chamber and then to another chamber and an unseen continuation.
EspeleoWorld
Trou Blion
Cavity with a narrow entrance 0.7 m by 0.4 m, with an old calcite flow, leading to a tiny chamber and then to another chamber and an unseen continuation.
Cournonterral
Depth: 3 m
Updated record
https://espeleoworld.com/en/c/trou-blion-cournonterral
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Cavity with a narrow entrance 0.7 m by 0.4 m, with an old calcite flow, leading to a tiny chamber and then to another chamber and an unseen continuation.
Description
Morphology
A narrow entrance (0.7 m x 0.4 m) gives access to a tiny chamber. The constriction that follows opens into another chamber, followed by a continuation (unseen).
Speleothems
The narrow entrance has an old calcite flow.
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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/74813 · 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 Marc Jupin (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/74813 · data as of 2026