Question: Gunthorpe is a residential area of the city of Peterborough in the United Kingdom, geographically, Gunthorpe lies to the south of Werrington and north of Paston, with Fulbridge Road to the west; Car Dyke, was, and to a large extent still is, a 85 mi -long ditch, which runs along the western edge of the Fens, in which eastern location?
Sentence (from "Car Dyke"): It is generally accepted as being of Roman age and, for many centuries, to have been taken as marking the western edge of the Fens.
Relevant evidence: No