The incoming Germanic peoples settled on the prime agricultural land of the Romano-Britons; particularly the foothills to the north of the downs and Holmesdale south of the downs escarpment. It is likely that they complemented agriculture with animal husbandry, but with nearby coasts and rivers it is also likely that they engaged in fishing and trading. The Anglo-Saxons made use of pre-existing prehistoric and Roman road systems, with 85% of cemeteries being located within 1.2 km of a Roman road, a navigable river or the coast, and the remaining 15% being close to ancient trackways. Little archaeological evidence of these early settlements exists, but one prominent example is a grubenhaus at Lower Warbank, Keston that was built atop the site of a former Roman villa, adjacent to a Romano-British trackway through the North Downs. Fifth-century ceramics have also been found at a number of villa sites around Kent, suggesting reoccupation of these locations during this period.