M25 Chalfont. Old Shire Lane
Post to the west Denham Lane
Post to the west Troy
Post too the north Chalfont Lane
Old Shire Lane
This is thought to be on the route of an old boundary separating the Saxon kingdoms of Wessex and Mercia. Some of it is now part of a walk through the area.
Colne Valley Park.. Old Shire Lane. Web site and leaflet