In Spain traditionally and historically, some autonomous communities are also divided into comarcas (Spanish: [koˈmarkas], sing. comarca). Some comarcas (e.g. comarques of Catalonia) have a clearly defined status, are regulated by law and even their comarcal councils have some power.
In some other cases (e.g. La Carballeda) their legal status is not very formal for they correspond to natural areas, like valleys, river basins and mountainous areas, or even to historical regions overlapping different provinces and ancient kingdoms (e.g. Ilercavonia). In such comarcas or natural regions municipalities have resorted to organizing themselves in mancomunidad (commonwealth), like the Taula del Sénia, the only legal formula that has allowed those comarcas to manage their public municipal resources meaningfully.
In English, a comarca is equivalent to a district, county, area or zone.
Mount Teide (Spanish: Pico del Teide, IPA: [ˈpiko ðel ˈteiðe], "Teide Peak") is a volcano on Tenerife in the Canary Islands. Its 3,718-metre (12,198 ft) summit is the highest point in Spain and the highest point above sea level in the islands of the Atlantic. At 7,500 m (24,600 ft) from its base on the ocean floor, it is the third highest volcano in the world, after Mauna Kea and Mauna Loa in Hawaii. Its elevation makes Tenerife the tenth highest island in the world. It remains active: its most recent eruption occurred in 1909 from the El Chinyero vent on the northwestern Santiago rift. The United Nations Committee for Disaster Mitigation designated Teide a Decade Volcano because of its history of destructive eruptions and its proximity to several large towns, of which the closest are Garachico, Icod de los Vinos and Puerto de la Cruz. Teide, Pico Viejo and Montaña Blanca form the Central Volcanic Complex of Tenerife.
The volcano and its surroundings comprise Teide National Park, which has an area of 18,900 hectares (73 sq mi) and was named a World Heritage Site by UNESCO on June 29, 2007. It is one of the most visited National Parks in the world, with a total of 2.8 million visitors, according to the Instituto Canario de Estadística (ISTAC).