Pre-Classic village site right just outside present-day Mexico City, dated to c1500-1000 BC, with a cemetery of more than 500 graves. The graves had local artifacts and some of the Olmec style, including figurines showing clothing types, hairstyles, skin decoration, and various occupations. Although there is no monumental stone architecture, low earth pyramids and bottle-shaped pits filled with household refuse indicate permanent residence. Located on an exit point on the western side of the valley, Tlatilco may possibly have been one of a number of stations on an Olmec trade route Veracruz with the raw material sources of western Mexico.