
Grotta dei Porci
A system of horizontal passages and fissures, developed along three wide joints enlarged by corrosion and fluvial erosion, with speleothems absent or very poor.
EspeleoWorld
Grotta dei Porci
A system of horizontal passages and fissures, developed along three wide joints enlarged by corrosion and fluvial erosion, with speleothems absent or very poor.
Orvieto
Length: 74 m · Depth: 19 m
Updated record
https://espeleoworld.com/en/c/grotta-dei-porci-orvieto-terni
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
A system of horizontal passages and fissures, developed along three wide joints enlarged by corrosion and fluvial erosion, with speleothems absent or very poor.
Topographic
© Matteo Guiducci · 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=54
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=54
Description
Morphology
System of passages and fissures. Trend: Horizontal. Passability: Easy; recommended period all year. Hazards: landslides/collapses.
Geology: SAA Scaglia Rossa - Upper Cretaceous-Middle Eocene (Turonian-Lutetian); stratified micritic limestones; stratified; subhorizontal. The cave is developed along three wide SE-NW, E-W, S-N joints, enlarged by corrosion and fluvial erosion. Nature of the ground: earthy at the entrance, earthy and detrital inside.
Speleothems
Speleothems: absent or very poor.
Other details
Excavation work was carried out in the search for archaeological finds.
Paleontology: Puccioni found remains of: Canis Lupus, Ovis Aries, Lepus Europaeus, Bos Taurus.
History
Archaeology and palethnology: the research carried out by Mochi gave a negative result. Studies: archaeological, palethnological.
Notes on the name: this cave seems to coincide with the Grotta di Santa Romana described by Puccioni; however, it was indicated by the locals under the name Grotta dei Porci.
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Bibliography
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=54 · 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

