 In addition to the hill forts, several sites have been identified as settlements during the pre Roman period including Cambria Farm and the "Lake Villages" at Meare and Glastonbury which were built on a morass, on an artificial foundation of timber filled with brushwood, bracken, rubble and clay.Most of the sites fell out of use with the coming of the Romans and therefore this list covers those sites occupied until that time.Almost all of the sites in the list are Scheduled Monuments.