The Grand Junction Canal connects Braunston in Northamptonshire with the river Thames (at Brentford) and was an important addition to the canal network in the late 18th century improving trade between the Midlands and London. The canal was bought out and became part of the Grand Union Canal in the 20th century and remains part of that canal now though these days for leisure. This Grand Junction Canal sign is still proudly displayed on a bridge at Berkhamstead.