Piedras Negras

geographical name

Pie·dras Ne·gras | \ pē-ˈā-drəs-ˈne-grəs

, ˈpyā-t͟hräs-ˈnā-gräs\

Definition of Piedras Negras

city on the Rio Grande in the state of Coahuila in northern Mexico population 152,806