Bingley 'Five-Rise' Locks. Opened in 1774 to raise the Leeds & Liverpool Canal 18 metres up the Aire Valley, this is the steepest lock staircase in Britain.
This is an approximate position
Canal Road, Bingley
[geolocate this address]
Google Streetview
OpenStreetMap
by Transport Trust in 2010 #24 of the Transport Heritage Site 'Red Wheel' series
Colour: red
Wikimedia:
Flickr: