Forat Petit de Prat Sobirà

Cavitat inèdita de 14 m de fondària a Coll de Nargó (Boumort)

Coll de Nargó • Alt Urgell92m14m

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Forat Petit de Prat Sobirà

Cavitat inèdita de 14 m de fondària a Coll de Nargó (Boumort)

Coll de Nargó · Alt Urgell

Length: 92 m · Depth: 14 m

Updated record

https://espeleoworld.com/en/c/forat-petit-de-prat-sobira

Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.

Topographic map of the main entrance — Main entrance · ICGC topographic map

Unprecedented cavity 14 m deep at Coll de Nargó (Boumort), located on 23 August 2024.

Characteristics

Type: Cave
Municipality: Coll de Nargó
Region: Alt Urgell
Unit: Boumort, el
Length: 92 meters
Depth: 14 meters
Major Unit: Prepirineu
Lithology: Sandstone
Last review: 2025-03-06

Location

About 75 m southeast of the Forat Gran de Prat Sobirà. To reach it we will set out from the pass at km.24 of the L-511 road (Isona-Coll de Nargó), following an old, rather faint path that climbs to Prat Sobirà, where the Forat Gran and Forat Petit de Prat Sobirà are located.

Entrances

Always verify coordinates and access conditions before setting out.

Prat Sobirà, Forat Petit de
Elevation: 1369 m
42.163158, 1.205602
UTM 31T (ETRS89) 351770 4669450
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Topographic

Forat Petit de Prat Sobirà - Topography, Coll de Nargó, Alt Urgell

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Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Image © its author.

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Photos

Forat Petit de Prat Sobirà - Photo, Coll de Nargó, Alt Urgell

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Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Image © its author.

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Description

Morphology

The entrance lies in a small doline half hidden among the trees. Past the entrance crawl, one reaches a boulder chamber, among which one can descend a few metres until it becomes impassable. Returning to the boulder chamber, one can advance towards the NE, passing another passage, and reach a 7 m pitch, by which one can access some lower galleries, also filled with unstable boulders, by which the maximum depth of the cavity is reached at -14 m.

Progression

To enter it, a dig was necessary. Past the entrance crawl, one reaches a boulder chamber. Returning to the boulder chamber, one can advance towards the NE, passing another passage where a dig was necessary, and reach a 7 m pitch, by which one can access some lower galleries, also filled with unstable boulders, by which the maximum depth of the cavity is reached at -14 m.

History

It was located, like the Forat Gran de Prat Sobirà, on 23 August 2024 by Joan Carles Juderias and Josep Guarro while prospecting points observed with LIDAR cartography. That day it was not possible to enter as the entrance needed digging. Three days later, on 26 August, Benjamí Granyena, Jordi Francès and Josep Guarro returned, dug open the entrance and carried out the exploration and survey.