The Usumacinta River was an important trade route, whose control was long under the main site in the region, Piedras Negras, which has monumental architecture and plenty of natural hot springs. The P-7 structure is the most known natural hot spring in the Maya world. La Passion River is located in the southwestern part of Petén, and formed part of the same route as western trade which includes the rivers Usumacinta and Salinas, at whose confluence is located the ancient city of Altar of Sacrifices. This region is noted for a high concentration of cities with extensive inscriptions, Dos Pilas is the most important by their hieroglyphic steps, and the high stelae of Petén. Its twin capital, Aguateca, is located in a strongly defensible place, aside from a stunning crack. It has quite a few stelae with inscriptions and an important sign of residences of the nobility and the royal court. These two cities were violently destroyed at the end of the 8th century A.D., marking the beginning of the so-called Classic Maya Collapse.
Thus let it be done! Let the emptiness be filled! 9 Let the water recede and make a void, let the earth appear and become solid; let it be done. Thus they spoke. Let there be light, let there be dawn in the sky and on the earth! There shall be neither glory nor grandeur in our creation and formation until the human being is made, man is formed. So they spoke.