Avenc de la Rendisclera

A collapse pit in Camarasa, in an old quarry. Entrance 5x4 m, shaft -5.46 m, chamber 12x11 m. Total depth -12 m, length 40 m. Part of the cavity is artificial.

Camarasa • Noguera 40m 12m

EspeleoWorld

A collapse pit in Camarasa, in an old quarry. Entrance 5x4 m, shaft -5.46 m, chamber 12x11 m. Total depth -12 m, length 40 m. Part of the cavity is artificial.

Camarasa · Noguera

Length: 40 m · Depth: 12 m

Updated record

https://espeleoworld.com/en/c/avenc-de-la-rendisclera

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

A collapse pit in Camarasa, in an old quarry. Entrance 5x4 m, shaft -5.46 m, chamber 12x11 m. Total depth -12 m, length 40 m. Part of the cavity is artificial.

Characteristics

Type: Pothole
Municipality: Camarasa
Region: Noguera
Unit: Serres marginals - Est
Length: 40 meters
Depth: 12 meters
Major Unit: Prepirineu
Lithology: Marl
Updated on EspeleoÍndex: July 24, 2022

Location

By the C-13 road towards Tremp, once past the Camarasa dam you go through a tunnel, and 150 metres further on to the left there is a parking area. From here we will go back 140 metres in the direction of the tunnel and follow the path that passes in front of a large mine entrance and climbs above the road tunnel; the path ascends quickly and before passing under a power line you must turn left in a westerly direction following a faint trail where we come across some cairns; this trail will take us to the platform of an old quarry completely covered in vegetation; we will climb it on the right; once at the top we will find a new quarry platform with the entrance of a mine that has an exit on the other side; we skirt it on the left and find a small artificial valley formed between the quarry wall and the slope created by the spoil heap from the mine extraction. On the cliff wall we find two mine entrances that join up inside, and about twenty metres further west is the entrance of the pit, 5x4 metres. The route from the parking area is about 500 metres with a height difference of 63 metres.

Entrances

Always verify coordinates and access conditions before setting out.

Avenc de la Rendisclera
Elevation: 408 m
41.910870, 0.886879
UTM 31T (ETRS89) 324748 4642039
Open in map Open in Google Maps

Download all entrances as GPX

Topographic

Avenc de la Rendisclera - Topography, Camarasa, Noguera

View image

Click to enlarge

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

Image 1 of 1

Photos

Avenc de la Rendisclera - Photo, Camarasa, Noguera

View image

Click to enlarge

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

Image 1 of 11

Description

Morphology

Cavity opened by collapse that is found on the terrace of an old quarry where a small artificial valley has formed, structured between the quarry wall and the slope created by the spoil heap from the extraction of material from the mines. An entrance of 4x5 metres in the shape of a funnel and -2.31 metres places us on the vertical of a bell-shaped shaft of -5.46 metres; at the base a descending ramp leads us to a chamber of 12x11 and 4 metres maximum height, which forms part of the mine that exists on this lower level; the accesses of the three mine galleries that gave access to the chamber are currently collapsed. The total depth is -12 metres and the length 40 metres; part of the cavity is artificial.

Hydrology

This small valley collects a good part of the rainwater that flows down the mountainside located below the Rendisclera de la Maçana and channels it towards the depression that forms the pit. The infiltration of water at this point has been dissolving the lower soft materials; the fact that on a lower level there was a mine gallery has been essential for the whole thing to collapse.

History

The Camarasa dam was built between the years 1917-1924, and to obtain material for the work various quarries were made, above all on the left hydrographic slope. In these quarries the excavation of various mine tunnels was also carried out. The passing of the years (about a hundred) and the vegetation that has grown there have kept this small refuge in anonymity. It was from a publication by Joan Ramon Segura on his blog (excursions del Joan Ramon) that we learned of the existence of this group of mine tunnels and of the presence of the pit.

User Comments (0)

No comments yet.

Be the first to share your experience!

Registered Explorations (0)

No explorations registered yet.

Bibliography

Dades i coordenades facilitades per Joan Ramon Segura (CE Lleida). (http://excursionsdeljoanramon.blogspot.com/2021/11/exploracio-pel-canal-1912-camarasa.html).