Avenc del Pont de l'escalat

A 38 m deep pit in the Begues stream (Olesa de Bonesvalls), a temporary sinkhole with a 10 m shaft and a 28 m drop.

Olesa de Bonesvalls • Alt Penedès 45m 38m

EspeleoWorld

A 38 m deep pit in the Begues stream (Olesa de Bonesvalls), a temporary sinkhole with a 10 m shaft and a 28 m drop.

Olesa de Bonesvalls · Alt Penedès

Length: 45 m · Depth: 38 m

Updated record

https://espeleoworld.com/en/c/avenc-del-pont-de-l-escalat

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 38 m deep pit in the Begues stream (Olesa de Bonesvalls), a temporary sinkhole with a 10 m shaft and a 28 m drop.

Characteristics

Type: Pothole
Municipality: Olesa de Bonesvalls
Region: Alt Penedès
Unit: Ordal, muntanyes de l'
Length: 45 meters
Depth: 38 meters
Major Unit: Serralada Litoral
Lithology: Limestone
Updated on EspeleoÍndex: November 17, 2012

Location

Along the road from Begues to Olesa de Bonesvalls, shortly before reaching the latter (Km. 17.7) is the so-called pont de l'Escalat that crosses the Begues stream. Past the bridge is the entrance street to the Can Xacó development, and shortly after turning a path descends to the stream down a heavily overgrown slope. About 50 metres upstream from the bridge and right by the streambed is the mouth of the pit.

Entrances

Always verify coordinates and access conditions before setting out.

Avenc del Pont de L'escalat
Elevation: 257 m
41.347000, 1.854410
UTM 31T (ED 50) 404255 4578116
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Topographic

Avenc del Pont de l'escalat - Topography, Olesa de Bonesvalls, Alt Penedès

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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 del Pont de l'escalat - Photo, Olesa de Bonesvalls, Alt Penedès

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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

Through a small opening one enters a 10 metre shaft; at its bottom, through a side window, one reaches a new 28 metre drop. Its bottom consists of silts and small clasts. In a corner of the bottom a narrow, short passage begins.

Hydrology

Temporary sinkhole of the Begues stream, which during times of heavy flooding we have been able to see completely flooded by the waters, which means that inside some debris carried by the current can be found.

History

The first exploration of which we have record is the one carried out by members of the GES – CMB in October 1962.

We will always be left with the doubt whether the vanished pit of the Riera de Begues, explored only by Dr. Francesc Español and to which a depth of 70 metres was attributed (Speleon V;1-2), could not be this same one. The description, if we except the speleometric differences, fits. In the epic account by Joaquim Montoriol: “Catorce horas de lucha en el avenc de l'Escarrá” (Boletín del CMB, 1952) mention is already made of a pit at the stream and, from the few details he gives, it seems to be the avenc del Pont de l'Escalat. The veterans of the GES have always been opposed to this totally unprovable theory and affirm having been at the point of the stream where large blocks plug that sinkhole.

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Bibliography

Ferrer, V. (2006).- Avencs de Garraf i d'Ordal. 152 pp. + llibret fitxes i topografies. Edició de l'autor. Barcelona.
Rubinat, F. (2004).- “Catàleg espeleològic del massís de l'Ordal” EspeleoSie (Monogràfic): 117 pp. SIE – CE Àliga. Barcelona.
Sitjà, R. (1970).- “Avenc del Pont de l'Escalat” Espeleòleg (10): 424-425. ERE del CEC. Barcelona.