Buco del Cannone
Cave at Colle della Grotta, formed after a 4 m drop by a steep slide almost completely obstructed by debris.
EspeleoWorld
Buco del Cannone
Cave at Colle della Grotta, formed after a 4 m drop by a steep slide almost completely obstructed by debris.
Arrone
Length: 10 m · Depth: 10 m
Updated record
https://espeleoworld.com/en/c/buco-del-cannone-arrone-terni
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Cave at Colle della Grotta, formed after a 4 m drop by a steep slide almost completely obstructed by debris.
Description
Morphology
The cave, after a 4 m drop, is formed by a steep slide almost completely obstructed by debris.
Other details
Over the years, shepherds have thrown several cubic meters of boulders into the cavity.
Geology: MAI Maiolica - Upper Jurassic-Lower Cretaceous (Tithonian-Aptian).
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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=695 · data as of 2025