Settlements in the area consist of named units that are usually centered on a specific parish or ritual area of an Earth shrine. These settlements are inhabited by members of several exogamous lineages housed in fortress-type compounds with 2.5meter-high walls, a flat roofs, and entrances reached (at least formerly) by wooden ladders to the roofs. These houses are some 100 meters apart and contain an average of 15 persons, but they vary in size, depending on the state of the developmental cycle of the domestic group. Around the walls lies the compound farm, which is fertilized by human detritus and is used by the women to plant their soup vegetables. It is adjoined by home farms; bush farms lie much farther away. The settlements consist of some 250 to 750 inhabitants.