María Elena nitrate works
National monument of Chile / From Wikipedia, the free encyclopedia
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The María Elena nitrate plant is the last nitrate works still in operation in the world. It was initially named Coya Norte, but was renamed María Elena (after his wife Mary Ellen Condon)[1] by its founder Elias Anton Cappelen Smith.[1][2][3] It is located in the commune of the same name, in Chile, 220 km northeast of Antofagasta. As the population grew from 6700 in 2017[4] to over 7,000 in 2020[5] most of whom are workers living near the plant.
It was declared in 1999 as a Protected Zone by the Council of National Monuments.[6]