Piedras Negras
geographical name
Pie·dras Ne·gras
pē-ˈā-drəs-ˈne-grəs 
ˈpyā-t͟hräs-ˈnā-gräs
city on the Rio Grande in the state of Coahuila in northern Mexico population 152,806
Cite this Entry
“Piedras Negras.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Piedras%20Negras. Accessed 4 Nov. 2025.
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