On the Welbeck Estate. The rough grass marks the line of a tunnel that ran 1.5 miles from the main house to a lodge at the north of the estate. The tunnel, abandoned in the late 19th century, was wide enough for two carriages to pass. The tunnel entrance is still visible [[3551755]]
Uploaded to Geograph by Graham Hogg on 8 July 2013
Photo © Graham Hogg, 8 July 2013. Licensed for reuse under this Creative Commons licence