Car Dyke is a Roman-era earthwork extending approximately 92 km (57 mi) along the western edge of the Fens in eastern England [1][2]. This substantial ditch was long believed to mark the fenland's western boundary [1].
Car Dyke

| Type | Earthwork |
|---|---|
| Period | 1 - 500 AD |
| Country | England |
| Coordinates | 53.0127° N, 0.2678° W |
England