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Grotta del Forello

Grotta del Forello

Cave with a predominantly horizontal development on two sub-horizontal branches overlooking the right bank of the Fiume Tevere, with three entrances and one branch ending in a 7 m shaft toward the outside.

Orvieto 80m 10m

Cave with a predominantly horizontal development on two sub-horizontal branches overlooking the right bank of the Fiume Tevere, with three entrances and one branch ending in a 7 m shaft toward the outside.

Caractéristiques

  • Type: Grotte
  • Municipalité: Orvieto
  • N° de cadastre: UM225
  • Longueur: 80 mètres
  • Profondeur: 10 mètres
  • Fiche mise à jour:

Situation

Location: Titignano, La Roccaccia.

Route: upper route of 1.1 Km, 30 min on foot. Once at the built-up area of Titignano, proceed along the unpaved road descending to the left of the Castello (if desired, the vehicle can be left in the parking area in front of the Castello and you can continue on foot since the road has steep or broken sections). After about 600 m at the first junction turn left, then continue for another 2 km until you see a parking pull-off on your right (from where the path to La Roccaccia starts); this is a further point where vehicles can be left. Then proceed along the last stretch of road, which has a broken and stony surface, for another 1.5 km, until reaching a pull-off on the left where vehicles can be left. If the road allows, continue with the vehicle until, after a few downhill hairpin bends and 600 m of unpaved road, you reach the travertine quarries. At the end of the road proceed W along a contour path. Leave the aforementioned path to head toward a rocky spur, visible toward the valley, directly above the Tevere; descend this spur on the E side until, with some difficulty, you reach the cave entrance.

Route from the river: 50 m, 5 min on foot. From the easternmost landing of the Corbara basin (to the right of the direction of navigation, hydrographic left) proceed upstream along the river for about 2.7 Km, then land on the left side (hydrographic right) near a rocky ledge; when the level is low, a semi-submerged cavity into which the river waters flow can be seen nearby. From the ledge climb to the right through the scrub along a faint path that first heads E then SE until, after about 40 m, you reach the foot of a wall at the westernmost access of the cavity; going around the same wall to the right of the entrance, after about ten m you find yourself in front of the large main entrance hall.

Route information: scrub or woodland, passable path, boat required.

Entrance: three entrances, the main one is a large entrance hall. Entrance setting: natural, slope. Access: free access; it can be reached both by boat and via the paths starting from Titignano.

Carte

Entrées

Vérifiez toujours les coordonnées et les conditions d'accès avant de partir.

  1. Grotta del Forello

    Altitude: 160 m

    42.735432, 12.302687
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Photos

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© 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=225

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Description

Morphologie

Cave that develops in two sub-horizontal branches overlooking the right bank of the Fiume Tevere. One of the two branches ends with a 7 m shaft that leads to the outside. Trend: predominantly horizontal.

Geology: SAA Scaglia Rossa - Upper Cretaceous-Middle Eocene (Turonian-Lutetian); stratified micritic limestones; stratified; the cavity is developed along two systems of sub-parallel fractures oriented WSW and ENE along which percolation waters acted by corrosion and the waters of the Tevere by erosion. Because of this, the sections of the gallery and of the entrance halls are sub-elliptical and the floor is, in the entrance halls and generally in the lower part of the cavity, sandy and earthy. On the walls of the main entrance hall particular erosional forms can be observed: various rock blades are crossed by channel-like perforations with a sub-elliptical or circular section with a diameter of several centimetres. The shaft instead opened by collapse at rocks weathered by solution; thus the characteristic debris cone was formed, here transformed into a cone.

Spéléothèmes

Speleothems almost non-existent.

Hydrologie

The cave is absolutely dry.

Progression

Traversability: easy; recommended period all year. Rigging: other; presence of traverses and handrails that are tackled by hand. Progression difficulty: drops, slides, narrow passages, traverses. Hazards: dangerous access, landslides/collapses.

Autres détails

Of palethnological interest. Finds: palethnological.

Histoire

Archaeology and palethnology: two excavation works were carried out in the cave by the University of Florence, in the floor of the main entrance hall. The finds would consist of animal bones, worked flints, pottery of various types. Prof. Graziosi, invited by the Principi Corsini (the owner of the estate at the time), carried out the excavations; the material found is now in the possession of the aforementioned Principi (Passeri 1965).

Studies: palethnological.

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Source : Catasto Cavità Umbria (Federazione Umbra Gruppi Speleologici, FUGS) (catasto.fugs.it), avec modifications. 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=225 · données de 2025 · Source : Catasto Cavità Umbria (Federazione Umbra Gruppi Speleologici, FUGS) (catasto.fugs.it), avec modifications. LicenseRef-FUGS-media-per-item Federazione Umbra Gruppi Speleologici (FUGS), Catasto Speleologico dell'Umbria · données de 2025