The Yokuts occupied permanent residences for most of the year, a pattern that stemmed from the abundance and diversity of the plant and animal resources in their environment. Both the Northern Valley and Southern Valley subtribes made use of oval-shaped single-family dwellings constructed of a wooden pole frame covered with tule mats. The Southern Valley Yokuts also used similar, but larger dwellings that housed as many as ten families. Among the Northern Valley subtribes dwellings were scattered in an irregular pattern in close proximity to one another, and among the Southern Valley groups they were arranged in a single, regular row. The Foothills Yokuts followed the irregular pattern of housing arrangement, but dwellings consisted of conical-shaped huts thatched with pine needles, tar weed, and other locally available materials.