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Piedras Negras — Wikipedia
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Piedras Negras may refer to: Piedras Negras, Coahuila, a city in the state of Coahuila, Mexico Piedras Negras Municipality, a municipality in Mexico, with the center in the eponymous city Piedras Negras (Maya site), an archaeological site of the pre-Columbian Maya civilization, located in the present-day Petén department of Guatemala Piedras Negras District Piedras Negras International Airport
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