 The archaeological record of this style is scant compared to that of Chan Chan in northern Peru.Paquimé was a prehistoric settlement that had cultural influence in the northwest of the Sierra Madre Occidental, most of modern-day western Chihuahua and some areas of what is now the states of Sonora, Arizona, Utah, Colorado and New Mexico.Researchers estimate that the population probably grew to about 3,500 inhabitants, but their linguistic and ethnic affiliation is unknown.