Location and physical structure of the Machadinho settlement project, Rondônia state (RO), Brazil. The traditional “fish-bone” pattern of settlements was replaced by an irregular land division that accounts for the local hydrology and topology, resulting in plots with frontage to roads and rear to a natural source of water. States portrayed in the map: AC, Acre; AM, Amazonas; PA, Pará; RO, Rondônia; MT, Mato Grosso.