Avenc de l'Espina
Small pit 12 m deep in Horta de Sant Joan, located about 400 metres SW of the summit of l'Espina (1182 m), on the same ridge that links it with the summit of Muntanyola.
EspeleoWorld
Avenc de l'Espina
Small pit 12 m deep in Horta de Sant Joan, located about 400 metres SW of the summit of l'Espina (1182 m), on the same ridge that links it with the summit of Muntanyola.
Horta de Sant Joan · Terra Alta
Sviluppo: 16 m · Profondità: 12 m
Scheda aggiornata
https://espeleoworld.com/it/c/avenc-de-l-espina
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Small pit 12 m deep in Horta de Sant Joan, located about 400 metres SW of the summit of l'Espina (1182 m), on the same ridge that links it with the summit of Muntanyola.
Topografia
Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Immagine © del suo autore.
Descrizione
Morfologia
A small shaft 7 metres deep, half blocked by boulders at its midpoint, communicates laterally at its bottom and through a narrow passage with another small shaft that reaches down to – 12 m.
Structured along two parallel joints oriented N – S.
Concrezioni
Some lithogenic formations are found in the second small shaft.
Storia
Although it has been known for a very long time and is marked on some maps of the Port, we do not know who may have made the first exploration. We only have record of the exploration by the ERE – CEC in January 1981.
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Bibliografia
Dades inèdites arxiu Toni Inglés
Grotte vicine
Fonte: Espeleoindex (espeleoindex.com), modificato. CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/