The largest archaeological trench dug on the Olympic Park revealed that land along the river channels had been organised, exploited and settled over long periods by prehistoric communities.
Ditches were discovered which defined rectangular fields dating to the Middle Bronze Age (1600–1100 BC). Such fields systems are known to have been laid out within a short time over much of the landscape in the region. The remains of a possibly contemporary roundhouse in an adjacent trench also indicated that people were probably building their homes close to the land they were farming.
Moving forward in time, the discovery of Late Bronze Age pottery (1100–700) BC) and other forms of household waste, such as animal bone, burnt clay, flint working debris, burnt flint, and perforated fired clay slabs of uncertain use, showed that settlement activity continued on and around this location for many centuries.
Further investigations revealed that a larger settlement was built on the Olympic Park site in the Middle Iron Age (400–100 BC). In total, seven roundhouses were discovered, some of them apparently replacements for earlier houses. Some may have been located in a square ditched enclosure, but eventually periodic flooding seems to have made the site too wet for living on, and the enclosure was probably used instead for holding livestock.