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Forat de la Grallera

Forat de la Grallera

Avenc de 41 metres de fondària a Llimiana

Llimiana • Pallars Jussà110m41m

A 41-metre-deep pit in Llimiana, with rhombohedral calcite crystals.

Characteristics

Location

Along the track that climbs from the Hostal Roig to the Portella Blanca, at the height of the Llau de la Coma del Torn and located at 1439 metres of altitude, we find a shepherds' hut. Once at the hut, we must descend northwards in a straight line to reach the start of a stratum that rises to the left of the Llau de la Coma del Torn. Once past the rise at the start of the stratum, it forms a sloping platform following the syncline. We will have to descend along the left side of the platform near the cliff; the cavity is in the middle of the wood about three hundred metres from the start of the platform.

Mapa

Entrances

Always verify coordinates and access conditions before setting out.

  1. Forat de la Grallera

    Elevation: 1069 m

    42.036660, 0.956190
    UTM 31T (ED 50) 330924 4656071
Download all entrances as GPX

Photos

Forat de la Grallera - Photo, Llimiana, Pallars JussàView image
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Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Image © its author.

Image 1 of 9

Description

Morphology

A 4 X 2.5 metre entrance and a 13.5-metre-deep shaft that leads to a chamber 15 metres wide with an irregular floor, full of blocks and sloping towards the north, which connects with two other chambers, the first of them by overcoming a narrow vertical passage.

Speleothems

In the last chamber we find, in profusion, spectacular rhombohedral calcite crystals.

Progression

The continuation is presented through a 20-metre crawlway that leads to the last chamber.

History

The first exploration corresponds to Ll. Auroux and F. Sas (GIE) on 7 December 1964.

Very probably, and judging by all the available indications, this cavity is the Forat de Costarrobres cited by Jeannel in 1910.

User Comments (1)

Jordi Cutrina

April 14, 2026

Bona tarda, algú em pot passar el track d'aproximació. Gràcies

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Bibliography

1.      Escolà i Boada, Oleguer. (1970).-“Catálogo Espeleológico del Montsec” Espeleòleg (11-12):453-541. Barcelona.

2.      GELL.(1987).-“Forat de la Grallera” Grallera (2):66. GELL-CE Lleida.

Source: Espeleoindex (espeleoindex.com), modified. CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/