The westernmost city of the Classic Maya world, built almost uniquely of fired brick rather than limestone due to the local absence of stone; likely a satellite or colony of Palenque and a Chontal Maya hub for cacao trade and mass clay-figurine production reaching as far as the Yucatán's Jaina Island.
Declined amid the wider Terminal Classic Maya collapse; its distinctive brick construction (often inscribed by the builders) and figurine molds remain its best-known legacy.
Site-specific architectural survey by a leading scholar of Maya Puuc/Gulf Coast architecture.