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Mariel(märēāl`), town, Artemesia prov., W Cuba, on sheltered Mariel Bay, 27 mi (43 km) WSW of Havana. A port in an agricultural region, Mariel has a special development zone designed to attract foreign investment. Manufactured products include cement and cigars; there is also fishing. Nearby are Cuba's principal asphalt reserves and a power plant. The Cuban naval academy was located on Mariel's outskirts for most of the 20th cent. In 1980 the town was the site of the Mariel boatlift, when over 100,000 Cubans left for Florida through its port.
city and port in western Cuba; population, 6,700 (1965). Mariel is a transportation junction. The Maximo Gomez thermoelectric power station, with an output of 200,000 kW, was constructed there with the help of the USSR to supply the Havana area with electric power. Major industries are a cement works and fishing.