Explored by Josep Castell and his group in 1966, when he was then a member of the ERE-CEC. It was later visited by members of the SIE – CEA who made a new survey (unpublished to date).

Years later it was the object of biospeleological research by our friend Floren Fadrique, who is the one who tells us that the correct name is Avenc de les Forques and not de la Forca as the first explorers called it.

Many years passed without any news of the cavity and with very erroneous location data, since instead of being in the barranc de les Forques, as was to be expected from the name, it turns out to be in the neighbouring ravine, that of Lleriola.

Once again our friend Floren, thanks to contact with a hunter who knew the exact location, accompanies him at the end of February 2024 and visits it again. Inside, a “graffiti” made by the first explorers in 1966 is still preserved.