Avenc de les Roquisses

Petit avenc de 7 m. de fondària a la Serra de l'Obac

Rellinars • Vallès Occidental20m7m

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Avenc de les Roquisses

Petit avenc de 7 m. de fondària a la Serra de l'Obac

Rellinars · Vallès Occidental

Length: 20 m · Depth: 7 m

Updated record

https://espeleoworld.com/en/c/avenc-de-les-roquisses

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 7 m deep in the Serra de l'Obac, explored in January 1965 by GES – CMB.

Characteristics

Type: Pothole
Municipality: Rellinars
Region: Vallès Occidental
Unit: Obac, Serra de l'
Length: 20 meters
Depth: 7 meters
Major Unit: Serralada Prelitoral
Lithology: Conglomerate
Last review: 2014-02-13

Location

Before entering Rellinars, take the track heading towards the font de Carlets and follow it until reaching the torrent de la Saiola, leaving the fork towards the house of la Boada on the left. Continue along the torrent in the direction of the Calsina; when the track makes a right-hand bend, leave it and cross the torrent de la Saiola and, heading N, enter the torrent de les Roquisses. Go up it (quite overgrown) until soon finding, on the left (right-hand slope), some slab graves. A few metres before, it will be necessary to climb this same slope about 25 metres and find the mouth of the pit.

Entrances

Always verify coordinates and access conditions before setting out.

Avenc de les Roquisses
Elevation: 436 m
41.634950, 1.937833
UTM 31T (ED 50) 411626 4609995
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Topographic

Avenc de les Roquisses - Topography, Rellinars, 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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Photos

Avenc de les Roquisses - Photo, Rellinars, 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

The mouth is elongated and measures 1 by 0.5 metres. We first find a small step of 1.5 metres preceded by a pronounced ramp that leads us to a platform from which we can take two directions. To the N continues a very narrow gallery that, after a small step, leads to a very narrow shaft, so far impassable; the gallery continues a few metres further, but very narrow. From the base of the entrance and in a S direction, a descending gallery can be followed, narrow but not as much as the previous one; at its bottom (level – 7) it climbs again a few metres until ending abruptly.

History

Discovered and explored in January 1965 by members of GES – CMB. Recognised for its narrownesses, it is not much visited. On 28 May 1982, members of SIS – CET turned over a narrow passage seen previously and, after removing a large stone and a trunk, were able to access the S gallery and the point of maximum depth of the cavity.

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Bibliography

Badiella, Xavier (1987).- “Els petits avencs de la nostra muntanya (XVIII)”. Arxiu del Centre Excursionista de Terrassa (49-50): 18-22. Centre Excursionista de Terrassa.