Geology and Minerals
El Hierro (pronounced [el ˈʝero] ; lit. 'The Iron'), nicknamed Isla del Meridiano (pronounced [ˈizla ðel meɾiˈðjano]; lit. 'Meridian Island'), is the southernmost and westernmost of the Canary Islands (an autonomous community of Spain), in the Atlantic Ocean off the coast of Africa, with a population of 11,659 (2023). Its capital is Valverde. At 268.51 square kilometres (103.67 sq mi), it is the second-smallest of the eight inhabited islands of the Canaries, with La Graciosa being the smallest.
History of coal mining in the United States.
Geology of the Pacific Ocean.
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