The story
The word drove means a drainage ditch, and is commonly used in this area.
Etymology from Wiktionary, CC BY-SA 4.0.
Black Horse Drove
Today it means: A linear settlement in Littleport parish, East Cambridgeshire district, Cambridgeshire, England, running west from Ten Mile Bank. The north-west end of Black Horse Drove borders onto the county of Norfolk. Full definition →