The El Paso region has had human settlement for thousands of years, as evidenced by Folsom points from hunter-gatherers found at Hueco Tanks. The evidence suggests 10,000 to 12,000 years of human habitation. The earliest known cultures in the region were maize farmers. When the Spanish arrived, the Manso, Suma, and Jumano tribes populated the area. These were subsequently incorporated into the "mestizo" culture, along with immigrants from central Mexico, captives from Comanchería, and "genízaros" of various ethnic groups. The Mescalero Apache were also present.