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Avenc del Tronc

Avenc del Tronc

A 37-metre-deep pit in the Tosa river area (Queralbs), with its entrance in a cliff wall near Roc Pinós.

Queralbs • Ripollès 70m 37m

A 37-metre-deep pit in the Tosa river area (Queralbs), with its entrance in a cliff wall near Roc Pinós.

Caratteristiche

Località

Along the track leading from Vilamanya (Queralbs) towards the Font de l'Home Mort, once past the Saragossa mine we come to a right-left bend, below which there are cliffs descending towards the Tosa river, near the area known as Roc Pinós. In the middle of one of the walls the entrance of the cavity opens. Approximate coordinates.

Mappa

Ingressi

Verifica sempre le coordinate e le condizioni di accesso prima di partire.

  1. Avenc del Tronc

    Quota: 1585 m

    42.343105, 2.126289
    UTM 31T (ETRS89) 428031 4688240
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Foto

Avenc del Tronc - Foto, Queralbs, RipollèsVisualizza immagine
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Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Immagine © del suo autore.

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Descrizione

Morfologia

After descending 44 metres down an exterior wall, one reaches a small ledge of about 4X8 metres where the entrance of the cavity is found; this has an opening of 2X5 metres.

Progressione

After a distance of 20 metres and having overcome a small step, one reaches the head of a 19-metre pit which begins with a narrow section and widens out from 3 metres onwards; this pit leaves us at the head of an earth and stone ramp that will lead us to a 9-metre pit which will place us at the bottom of the cavity.

Storia

In the Memòria Espeleològica 1962 of the Grup d'Espeleologia de Badalona a brief note was published about the prospections carried out that year in the Queralbs area. Among others, it reports the exploration of a 42-metre-deep pit, which they name Avenc del Tronc, without specifying almost anything else.

The cavity remained forgotten until September 2007, when members of the GES del CM Terrassa who were going with the aim of locating and surveying the Graller del Bogader made a mistake about its location and accidentally found this other cavity.

Once the descent inside the cavity had begun, their rope ran out at the head of a pit of about ten metres; this incident made them decide to name it Avenc de la Corda Justa; the GES del CMT returned to the cavity on 4 May 2008 to finish the exploration and the survey, publishing it on the club's website. A few days later, members of the GE Badalona made public that it was the same cavity explored in 1962.

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Bibliografia

  1. Valles, J. de (2009).- Catàleg Espeleològic de Catalunya. Vol. 3: 381 pp. Espeleo Club de Gràcia / Federació Catalana d'Espeleologia. Barcelona.
  • Coordenades, dades, topografia i fotografies extretes del blog del GES del CM de Terrassa (ges-cmterrassa.blogspot.com.es) post del 17 de maig de 2008.

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