An Old Engine Pit, presumably a Coal Mine, is shown on the 1st edition Ordnance Survey Map, but it is not clear whether it was working at that time (c.1858). This may have been the Engine Pit opened in 1775 "at Willington" by Messrs Bells and Brown.

NEHL - The pit ceased operations by the 1850s, as it was labelled as "old" on the 1850s Ordnance Survey Maps. It probably provided alternative access or ventilation to the wider Willington Colliery workings, alongside the shaft a few metres south closer to the Willington Square settlement.