Coordinates: 17°10′0″N 91°15′45″W / 17.16667°N 91.26250°W
Piedras Negras is the modern name for a ruined city of the pre-Columbian Maya civilization located on the north bank of the Usumacinta River in the Petén department of northeastern Guatemala.
The name Piedras Negras means "black stones" in Spanish. Its name in the language of the Classic Maya has been read in Maya inscriptions as Yo'k'ib' ([ˈjoʔkʼib]), meaning "great gateway" or "entrance", considered a possible reference to a large and now dry sinkhole nearby. Some authors think that the name is Paw Stone, but is more likely to be the name of the founder as hieroglyphs on Throne 1 and altar 4 show.
Piedras Negras had been populated since the 7th century BC. Its population seems to have peaked twice. The first population peak happened in the Late Preclassic period, around 200 BC, and was followed by a decline. The second population peak of Piedras Negras happened in the Late Classic period, around the second half of the 8th century, during which the maximum population of the principal settlement is estimated to have been around 2,600. At the same time, Piedras Negras was also the largest polity in this region with a total population estimated to be around 50,000.