Tunnel des Tassons
Monnetier-Mornex 12m
EspeleoWorld
Tunnel des Tassons
Monnetier-Mornex
Length: 12 m
Updated record
https://espeleoworld.com/en/c/tunnel-des-tassons-monnetier-mornex
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Cavity in Monnetier-Mornex (Haute-Savoie). Length 12 m.
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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/11593 · The derived data is available on request under the ODbL: [email protected] · data as of 2026