Avenc de les Aranyes Roges
Small but interesting collapsed pit 5 m deep in the Garraf, with a small entrance shaft of 3.5 m.
EspeleoWorld
Avenc de les Aranyes Roges
Small but interesting collapsed pit 5 m deep in the Garraf, with a small entrance shaft of 3.5 m.
Begues · Baix Llobregat
Length: 7 m · Depth: 5 m
Updated record
https://espeleoworld.com/en/c/avenc-de-les-aranyes-roges
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Small but interesting collapsed pit 5 m deep in the Garraf, with a small entrance shaft of 3.5 m.
Topographic
Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Image © its author.
Photos
Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Image © its author.
Description
Morphology
Medium entrance among blocks. Small entrance shaft of 3.5 metres, the bottom of which is a level of materials washed in by water from a small catchment basin. The last metre and a half was the result of a major dig.
Wide pit collapsed by subsidence and with the space between blocks refilled by sediments.
History
Cavity previously unpublished, known to Lluís Muntan (GES-CMB) since November 2003 and which, together with colleagues from GES-CMB, he explored in 2004, providing us with the location data and the name they gave it.
Our colleague Jordi de Valles tells us that this small pit had been located and explored by members of the Grup Geogràfic de Gràcia towards the end of the 1970s, more or less at the same time as they explored the nearby Avenc Pierro; we do not know, however, whether they gave it a name and, if so, which. He also informs us that the dig at the bottom was done a few months ago (2014) by the Espeleo Club de Gràcia.
Bio
The spiders that gave the pit its name continue to reproduce inside it, although they are not abundant.
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Bibliography
- Valles, Jordi de (2017).-”Baix Llobregat”. Catàleg Espeleològic de Catalunya (Vol.6):1-468. EC Gràcia/FCE.
- Dades inèdites de Lluís Muntan (GES – CMB)
- Revisió de dades, topografia i fotografies facilitades per Xavier López i Martí Romero (ERE – CEC)
- Topografia extreta del blog de Jordi de Valles, post del dia 21-07-2015 (cavitatsdecatalunya.blogspot.com.es).
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Source: Espeleoindex (espeleoindex.com), modified. CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/