C-25
Series of partly artificial tunnels, located at Marmore, La Fossa.
EspeleoWorld
C-25
Series of partly artificial tunnels, located at Marmore, La Fossa.
Terni
Length: 23 m · Depth: 2 m
Updated record
https://espeleoworld.com/en/c/c-25-terni
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Series of partly artificial tunnels, located at Marmore, La Fossa.
Description
Morphology
Series of tunnels, partly artificial.
Other details
Geology: among carbonate and travertine deposits, of the Quaternary (Pleistocene - Holocene).
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Nearby caves
Source: Catasto Cavità Umbria (Federazione Umbra Gruppi Speleologici, FUGS) (catasto.fugs.it), modified. LicenseRef-FUGS-no-licence-stated Federazione Umbra Gruppi Speleologici (FUGS), Catasto Speleologico dell'Umbria · https://catasto.fugs.it/index.php?mod=caves&op=view&id=311 · data as of 2025