It is both the youngest and highest volcano in the Iberian Peninsula, with the last eruption dated back to about 14,000 years Before Present.

[1][4] The cone has a height of 189.04 metres (620.2 ft)[Note 2] and an elliptical base with a horseshoe shape, probably caused by the breaching of the western-side of the volcano as a result of the effusion of lava flows during the last eruptive phase of Croscat.

In 1982 the Zona Volcànica de la Garrotxa Natural Park was created to protect the area but the extraction lasted for another nine years.

Further protests were sparked after an agreement was reached between the concessionaire of the quarry, Minas de Olot, SA, and the Generalitat of Catalonia for the further extraction of 2.7 million tons with educational and scientific purposes, with the commitment of restoration of all excavated areas.

[1] In the 1990s a territorial landscaping project was undertaken to restore the extraction site and the landfill to recover the morphology of the base of the volcano and the pastures surrounding the area.