Piedras Negras

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Piedras Negras

, ancient city, Guatemala
Piedras Negras (pyāˈᵺräs nāˈgräs) [Span.,=black stones], ruined city of the Classic era of the Maya, NW Petén, Guatemala, in the Usumacinta valley. Reaching a peak of sculptural achievement (according to one dating system, between 731 and 795), Piedras Negras developed some of the finest pre-Columbian stonework.

Piedras Negras

, city, Mexico
Piedras Negras, city (1990 pop. 96,178), Coahuila state, N Mexico, on the Rio Grande opposite Eagle Pass, Tex. Founded in 1849, the city grew as an international shipping point. Piedras Negras is a commercial and processsing center for the surrounding agricultural region. Industry includes coal mining and metal-ore furnaces. In 1888, Piedras Negras was renamed Ciudad Porfirio Díaz in honor of the dictator, but the old name was restored after his overthrow.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Piedras Negras

 

a city in northeastern Mexico, in the state of Coahuila; situated on the Rio Grande, at the US border. Population, 65,900 (1970). Piedras Negras is linked with Mexico City by railroad and highway. It has a ferrous metallurgy industry. Border trade with the USA is conducted through the city.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.