Tamtoc
Tamtoc was a Huastec city on the Tampaón River in the Huasteca. Its name meant place of the water clouds, and it became a leading regional centre.
Around 1350 Tamtoc lost its regional hegemony and was abandoned. Its sculptors had carved sandstone stelae and statues from Sierra de Tanchipa quarries; by the time Spanish forces overran the Huasteca after 1519, only ruins remained.