Investigations along the route of a new gas pipeline produced evidence of a variety of types of site spanning periods from the Bronze Age to the Saxon era. These included, in Buckinghamshire, an Iron Age site at Chilton Grove and a late Roman site at Peppershill Farm, and in Oxfordshire, a late Bronze Age site at Latchford, Iron Age and Saxon settlement at Rycote, and Iron Age and Roman sites at both Corrnwell Copse and Warpsgrove.At Walton Road in Aylesbury in the Middle Bronze Age at least four roundhouses occupied the site. A middle Saxon settlement consisted of at least eight post-built hall houses, one building using a foundation trench construction, and one sunken featured building (or grubenhaus).