Miguel, from where they returned every year to dance at the Temple of the site. Another legend says: "That originally the place was built and inhabited by Tula’s Toltec and later inhabited by Otomi for a long time." After an earthquake, Huamango inhabitants left the site and moved to a place called Dongú, where they formed a new Center. "Later moved into what today is known as Acambay". Because of this last legend many direct inhabitants of the region, that claim to be descendants of Huamango builders, and take care of the place and of their Otomi customs. The Site The ancient city was built on leveled terraces, it was necessary to make important works on the site terrain irregular topography, to level the field and created large terraces for the structures construction, some probably ceremonial. For the city many reinforcement walls were built, from their size, probably were defensive walls of up to 2 meters high in some parts. During the site occupation, it is probable that the Central Highlands had political and social instability, there were different cultures disputing control of the region and its cities. Huamango, dominated the Acambay Valley and the peripheral region. It is likely that its location was due to defensive needs, and also to control trade and northern trade routes (States of Hidalgo, Michoacán and Querétaro) and also the southern (Valley of Ixtlahuaca - Atlacomulco and Toluca Valley). Tula exerted an important influence on the central plateau in religion, politics and Economics. Political and Trade Center It is thought that Huamango was an important political center with controls on other cities of the region. Their people kept different type of relations, mainly trade with sites in the Tula hierarchy and some settlements of the Michoacán region. Because of the large ceramic variety found, and its strategic location, is thought the city might have been an important trade center, of the central plateau with the western regions. Constructions The site covers six hectares, on which the architectural elements were discovered, the area is characterized by its oak forest and the unreliable land for agriculture, this difficulty diminished on the terraces built. The outline of most platform base is only marked by stones. Elite rooms are presumed to have been built, occupied by Huamango priests and administrators. Although the land topography was not suitable for construction, the constructors had a remarkable solution to the problem,