Piedras Negras is at the northern border in the state of Coahuila, Mexico. It is known as the “La Frontera Fuerte de Mexico” known as ¨the strong border of Mexico¨. It sits on the other side of the Rio Grande from the Texas border town of Eagle Pass, and is just about 150 miles southwest of San Antonio.
Translation: black stones
Area: 353 sq. miles
Mayor: Fernando Purón
Time Zone: Central
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