
Grotta di Pizzo Corvo
A wide collapse doline with initially vertical walls that flare out toward the bottom, formed by a thick layer of collapse boulders partly colonized by bryophytes.
EspeleoWorld
Grotta di Pizzo Corvo
A wide collapse doline with initially vertical walls that flare out toward the bottom, formed by a thick layer of collapse boulders partly colonized by bryophytes.
Narni
Length: 48 m · Depth: 48 m
Updated record
https://espeleoworld.com/en/c/grotta-di-pizzo-corvo-narni-terni
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
A wide collapse doline with initially vertical walls that flare out toward the bottom, formed by a thick layer of collapse boulders partly colonized by bryophytes.
Topographic
© Mauro Barbieri · CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/ · Federazione Umbra Gruppi Speleologici (FUGS), Catasto Speleologico dell'Umbria · https://catasto.fugs.it/index.php?mod=caves&op=view&id=82
Photos
© Mauro Barbieri · LicenseRef-FUGS-media-per-item · Federazione Umbra Gruppi Speleologici (FUGS), Catasto Speleologico dell'Umbria · https://catasto.fugs.it/index.php?mod=caves&op=view&id=82
Description
Morphology
Wide collapse doline that opens with initially vertical walls and then flares out toward the lowest portion. The bottom is formed by a thick layer of collapse boulders partly colonized by a dense population of bryophytes. Trend: vertical.
Geology: MAS Limestone Massiccio - Lower-Upper Jurassic (Sinemurian-Pliensbachian); massive limestones; massive.
Hydrology
Hydrology and meteorology: no circulation; ambient temperature, although the scarce internal irradiation causes a cooling of the doline.
Progression
Traversability: experts only; recommended period: dry period. Progression difficulty: pits.
Rigging: not rigged; rigged on 3 naturals (trees). Clean well of branches and soil as it discharges a lot. Recommended use of ropes or slings "choked" so as to keep the attachment high and reduce rope friction with the ground.
Other details
Hazards: dangerous access, landslides/collapses, pits that discharge, other hazards.
Pollution: low intensity, presence of solid plastic debris thrown even since time immemorial.
History
Notes on the name: it seems that the name derives from the fact that the water is rapidly absorbed, hence the term Corbo = basket.
Bio
Other hypogean fauna: presence of a live toad at the bottom on 28/04/2025.
Hypogean botany: population of bryophytes that colonizes the highest part of the debris cone at the bottom, where solar irradiation reaches.
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Bibliography
LIPPI BONCAMBI C. (1950) Sullo stato attuale del Catasto Speleologico dell'Umbria LEMMI G. (1958) Note di aggiornamento del Catasto Speleologico dell'Umbria LEMMI G. & COLETTI G. (1961) Elenco catastale delle grotte dell'Umbria ANONIMO (1962) Attività del Gruppo Grotte dell'Istituto di Geologia dell'Università di Perugia
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=82 · data as of 2025 · Source: Catasto Cavità Umbria (Federazione Umbra Gruppi Speleologici, FUGS) (catasto.fugs.it), modified. LicenseRef-FUGS-media-per-item Federazione Umbra Gruppi Speleologici (FUGS), Catasto Speleologico dell'Umbria · data as of 2025
