Cuicuilco - Archaeological Site

Archaeological Site

The site of Cuicuilco is covered by a dense volcanic lava field known as the Pedregal de San Ángel. The lava covers an area of approximately 80 km², including the foothills of the Ajusco mountain range and extending down to a nearby lake shore. A 1956 study concluded that the uneven lava deposits, reaching a depth over 10 m in areas, were a major factor in the preservation of Cuicuilco. The site is also inside a modern urban area, and is partially covered by buildings associated with the National University of Mexico. Only partial archaeological investigation has been possible, and modern building techniques have damaged the prehistoric city. Several 1990 archaeological finds at Cuicuilco, consisting of a circular pyramid constructed within a plaza with smaller structures associated with agricultural system, were destroyed for the construction of a multi-storied office complex. Consequently, the true size and complexity of Cuicuilco may be difficult to ascertain.