Locks, bridges, wharves, junctions and other features of the canal network, from Canal & River Trust open data. They’re useful as landmarks when planning a trip or finding a listing.
North portal of Blisworth Tunnel (1,753 yards), the longest tunnel on the canal network still in navigable use, on the Grand Union Canal near Blisworth. Data from Canal & River Trust open data, licensed under the Open Government Licence v3.0.
CRT winding hole at Winkwell, near Hemel Hempstead — a little further south than the core stretch; included for completeness. Data from Canal & River Trust open data, licensed under the Open Government Licence v3.0.
CRT winding hole at Cow Roast, near Tring. Data from Canal & River Trust open data, licensed under the Open Government Licence v3.0.
CRT winding hole near Bulbourne Junction. Data from Canal & River Trust open data, licensed under the Open Government Licence v3.0.
CRT winding hole (boat turning point) at Red House, Aylesbury Arm. Data from Canal & River Trust open data, licensed under the Open Government Licence v3.0.





