Grenofen is a hamlet in Devon. It is located about 2 miles south of Tavistock on the A386 at the southwestern edge of Dartmoor National Park. Grenofen was mentioned as Grenefenne in 1238 in the Assize Rolls for Devon.[1]
When the South Devon & Tavistock Railway was built by Brunel in the 1850s, several tunnels and bridges were necessary to cover the terrain. The most northerly tunnel of the railway was located in Grenofen.[2] The tunnel is 374 yards long and today forms part of the Tavistock to Plymouth cycle route, part of the Drake's Trail.[3] [4]
Part of the track forms the Gem Bridge, crossing the River Walkham, just south of Grenofen.[5]