From the media library. Yaxchilan, Chiapas, Mexico. Pt 1.

Yaxchilan is an ancient Maya city located on the bank of the Usumacinta River in what is now the state of Chiapas, Mexico.

In the Late Classic Period Yaxchilan was one of the most powerful Maya states along the course of the Usumacinta River, with Piedras Negras as its major rival

_{Information sourced from Wikipedia https://en.wikipedia.org/wiki/Yaxchilan}