A Neolithic village site of pile dwellings on the edge of Lake Neuchâtel, and the type site of the oldest Neolithic culture in western Switzerland, with a starting date of c 3800 BC and lasting to after 2500 BC. Cortaillod is noted for the fine preservation of wood, cloth, and plant remains, and for its plain round-based pottery of Western Neolithic type. A large number of wooden and birch-bark utensils and containers have been found as well as organic remains, including fruits and nuts as well as cereals, pulses, and flax. The houses were built on wooden frames with walls of clay set on closely spaced timbers; the roof were probably thatched. The inhabitants practiced mixed farming, plus hunting and fishing. The round-based dark burnished pottery demonstrates connections with the Chassey culture of France.