
Avenc M-7
A 43-metre-deep pit in Montcortès, Baix Pallars, explored in 1983 and surveyed in 1989.
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Avenc M-7
A 43-metre-deep pit in Montcortès, Baix Pallars, explored in 1983 and surveyed in 1989.
Baix Pallars · Pallars Sobirà
Length: 130 m · Depth: 43 m
Updated record
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A 43-metre-deep pit in Montcortès, Baix Pallars, explored in 1983 and surveyed in 1989.
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
The first section of the pit is an open-air fracture where we pass under a large block; in about 15 metres we will find a turn to the left and a drop of a little more than 2 metres. We will continue a few more metres where we find a turn to the right, and shortly after another turn, this time to the left; after a few metres we enter the dark zone, since on reaching the point R-4.5 it becomes a cave until reaching a small chamber located at -18.91 metres, where a rope must be rigged to descend a pit of -11 metres (parabolt without hanger); at the base of this pit we find a gallery of interesting dimensions where the ceiling in some points reaches 13 metres in height, and it leads us by means of some drops to the point of maximum depth of the cavity, at -43 metres. The total route is 130.43 metres.
History
On 26 to 30 March 1970 a team from the SIE of the CEA explores the Forat de Montcortès (98 metres) and the Forat del Vicenç (-10 metres). Later, on 6 and 7 March 1976, another SIE team in which some of the members of the previous team take part, explore in the serra de Peracalç, between the estany de Montcortès and Peracalç, three cavities of (-30 metres, -11 metres and -7 metres) depth respectively, which they name Forats de la Grata no. 1, 2 and 3; this information remains in the SIE archives but nothing about it is ever published. Very probably they correspond to one of the many holes explored by the GEB in this sector.
In 1980 the GEB begins a series of explorations on this flat area that is to the N of the roca de Perauba and to the W of the dolmen de Perauba, and which the GEB calls pla del campament, because it is the spot where they set up camp during the explorations; these would last until the year 1988.
Later they return in September 1994, and in July 1995 they accompany the archaeologists from the department of history of pre-capitalist societies and of social anthropology of the UAB, returning again in November 1999.
In the course of these years, the forest mass has grown considerably, which also complicates the location of the cavities.
This cavity in particular was explored in 1983 but was not surveyed until 1989.
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Bibliography
- Porcel Caro,Enric.(1990).-”Exploracions a la Serra Magdalena ”.Cavernas (22):49-57. GE Badalona.
- Porcel Caro,Enric; Miret Pérez, Francesc.(2008).-”Cavernes d'interès arqueològic”. Cavernas (27):58-63. GE Badalona.
- Navarro,J.(1971).-”Relación cronológica de las exploraciones realizadas por miembros de la SIE en 1970”. EspeleoSie (10):75-87. SIE – CE Àliga. Barcelona.
- De Valles, Jordi.(2008).-Catàleg Espeleològic de Catalunya (Vol 1):245-246. ECG, FCE. Badalona.
- Fitxa actualitzada el novembre de 2017, coordenades, fotografies i dades facilitades per Enric Peradalta Rocha (GIRES).
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Source: Espeleoindex (espeleoindex.com), modified. CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/




