This junction, east of Plymouth gave access from the former South Devon Railway to the South Devon and Tavistock Railway. Approach to the branch was from the west. The junction opened in 1859 and the Tavistock [GWR] line was absorbed by the South Devon in 1865, which became part of the Great Western Railway in 1878. Tavistock Junction Yard was developed to the east.
The Tavistock [GWR] line closed in 1962 but the southern end was retained for freight to Marsh Mills China Clay Works. The junction closed in 1965 when a new connection to the rump of the branch opened from east.
With the works closed the line fell out of use although the track remains in unusable condition. It may re-open, to connect the preserved Plym Valley Railway to the railway network.