Avenc de Rosseguers

Petit avenc de gairebé 12 m. de fondària a la Serra de l'Obac

Vacarisses • Vallès Occidental19m12m

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Avenc de Rosseguers

Petit avenc de gairebé 12 m. de fondària a la Serra de l'Obac

Vacarisses · Vallès Occidental

Length: 19 m · Depth: 12 m

Updated record

https://espeleoworld.com/en/c/avenc-de-rosseguers

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

Small pit nearly 12 m deep in the Serra de l'Obac, an old swallow hole of the torrent suspended about 5 metres above the streambed.

Characteristics

Type: Pothole
Municipality: Vacarisses
Region: Vallès Occidental
Unit: Obac, Serra de l'
Length: 19 meters
Depth: 12 meters
Major Unit: Serralada Prelitoral
Lithology: Conglomerate
Last review: 2012-11-25

Location

From the Casa Nova de l'Obac one must head towards the Casa Vella de l'Obac as if going to la Saiola, following the torrent that leads to the font de Rosseguers. The entrance opens almost at the very top of the torrent and about 5 metres above the streambed.

Entrances

Always verify coordinates and access conditions before setting out.

Rosseguers, Avenc de
Elevation: 576 m
41.631144, 1.955460
UTM 31T (ED 50) 413089 4609555
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Topographic

Avenc de Rosseguers - Topography, Vacarisses, Vallès Occidental

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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

Entrance opening of 4.20 by 1.25 metres. It consists of a single shaft 11.5 metres deep. The floor plan, of elongated shape, measures 7 by 2.5 metres. The bottom is covered with leaves and trunks as well as stones from the exterior.

Hydrology

Old swallow hole of the torrent today suspended about 5 metres above the streambed.

History

This pit was known from having been cited in the list of unexplored cavities published in the Arxiu d'Estudis no. 28 of the Centre Excursionista de Terrassa in 1924.

Rediscovered and explored by members of the SIS of the Centre Excursionista de Terrassa on 11 July 1971. Apparently, some years earlier Josep Mª Torras (GES-CMB) “had made a partial exploration of it”.