 Neolithic communities seem to have preferred Norfolk's light soils and well-drained river valley tracts, rather than the heavily wooded central claylands, although these were probably occupied to some extent and also exploited for hunting and foraging.Excavation results indicate that the woodland was dominated by oak and pine, see Broome Heath and Colney.The fertile Rich Loam region of north and east Norfolk, with its loess-rich soils, may have been especially congenial, and the number of possible monuments here is striking.