Tacora is a stratovolcano located in the Andes of the Arica y Parinacota Region of Chile. Near the border with Peru, it is one of the northernmost volcanoes of Chile. It is part of the Central Volcanic Zone in Chile, one of the four volcanic belts of the Andes. The Central Volcanic Zone has several of the highest volcanoes in the world. Tacora itself is a stratovolcano with a caldera and a crater. The youngest radiometric age is 50,000 years ago and it is heavily eroded by glacial activity. Volcanism in the Central Volcanic Zone results from the subduction of the Nazca Plate beneath the South America Plate. Tacora is constructed on the so-called "Arica Altiplano" and is part of a northsouth alignment of volcanoes. Tacora itself has uncertain reports of historical eruptions and there are active fumaroles. The fumarolic activity has resulted in the emplacement of substantial deposits of sulfur, which were already mentioned centuries ago. Towards the latter 19th century, systematic mining of the sulfur deposits of Tacora occurred and substantial mining infrastructure was constructed on the mountain. Tacora lies in the Arica y Parinacota Region of Chile, about northeast of Arica. It is among the northernmost volcanoes of Chile and poorly known. Tacora is part of the Central Volcanic Zone, one out of several volcanic belts of the Andes. The Central Volcanic Zone is one of the world's major volcanic provinces and features both a high density of volcanoes and some of the tallest volcanic edifices in the world. Volcanoes in the Central Volcanic Zone include Sabancaya, El Misti and Ubinas in Peru and Tacora, Isluga, Irruputuncu, Ollague, San Pedro, Putana, Alitar, Lascar and Lastarria in Chile, Bolivia and Argentina; there are about 34 volcanoes in the Chilean portion of the Central Volcanic Zone alone. Of these Lascar is considered to be the most active, with a large eruption in 1993. Aside from volcanoes, the Central Volcanic Zone also features geothermal fields such as El Tatio.