Nickey line
The Nickey line (also known as the Harpenden to Hemel Hempstead branch railway) is a disused railway that once linked the towns of Hemel Hempstead and Harpenden (initially Luton), via Redbourn, in Hertfordshire, England. The former trackbed has been redeveloped as a rail trail and is part of the Oxford to Welwyn Garden City route of the National Cycle Network.