The Cromford Canal ran 14.5 miles (23 km) from Cromford to the Erewash Canal in Derbyshire, England with a branch to Pinxton. Built by William Jessop with the assistance of Benjamin Outram, its alignment included four tunnels and 14 locks.[1]
From Cromford it ran south following the 300-foot (91 m) contour line along the east side of the valley of the Derwent to Ambergate, where it turned eastwards along the Amber valley. It turned sharply to cross the valley, crossing the river and the Ambergate to Nottingham road, by means of an aqueduct at Bullbridge, before turning towards Ripley. From there the Butterley Tunnel took it through to the Erewash Valley.