volcanic peak at the centre of the island of Tenerife, in the Santa Cruz de Tenerife provincia (province) of the Canary Islands comunidad autónoma (autonomous community), Spain. At 12,198 feet (3,718 metres), it is the highest point on Spanish soil. Teide is the peak atop El Pilón, a 492-foot- (150-metre-) high volcanic cone that rises from a crater on the upper reaches of the mountain El Teide, which is itself a conglomeration of several volcanoes rising within a 10-mile- (16-km-) wide caldera called Las Cañadas. Snow covers the summit only in winter. Teide Peak has a crater about 260 feet (80 metres) in diameter. Hot gases are ejected from vents within the crater and on the slopes. The last eruption of the mountain El Teide was in 1909, on the northwestern flank of the volcano. El Teide dominates Teide National Park (established 1954), in which it is located. The park was designated a UNESCO World Heritage site in 2007. An international solar observatory is located at Izaña, about 4 miles (6 km) northeast of the park.