Place:Piedras Negras, Coahuila, Mexico

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NamePiedras Negras
Alt namesCiudad Porfirio Díazsource: Encyclopædia Britannica (1988) IX, 430
TypeCity
Coordinates29.183°N 100.883°W
Located inCoahuila, Mexico     (1849 - )
source: Getty Thesaurus of Geographic Names
source: Family History Library Catalog


the text in this section is copied from an article in Wikipedia

Piedras Negras is a city and seat of the surrounding municipality of the same name in the Mexican state of Coahuila. It stands at the northeastern edge of Coahuila on the Mexico–United States border, across the Rio Grande from Eagle Pass in the U.S. state of Texas. In the 2015 census the city had a population of 163,595 inhabitants,[1] while the metropolitan area had a population of 245,155 inhabitants.[1] The Piedras Negras and the Eagle Pass areas are connected by the Eagle Pass–Piedras Negras International Bridge, Camino Real International Bridge, and the Union Pacific International Railroad Bridge.

In Spanish, translates to 'black stones' – a reference to coal deposits in the area. Across the river, coal was formerly mined on the U.S. side at Dolchburg, near Eagle Pass. This mine closed around 1905, after a fire. Mexico currently operates two large coal-fired power station named "José López Portillo" and "Carbón 2" located south of Piedras Negras. These two coal-fired power plants are currently operated by Comisión Federal de Electricidad, the state-owned Mexican electric utility.

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