Belle Pit is shown on the 1st edition Ordnance Survey Map; the 2nd edition shows an expansion of spoil heaps.

NEHL - The Belle Pit was located off what is now Blackhill Avenue, and was a rudimentary working likely for landsale, ie the local trade. The mid 19th century Ordnance Survey shows the pit as a heap with a rectangular reservoir in the centre, likely water pumped from the workings below. The pond remained into the 1890s, though there is no evidence of the shaft. This may imply the shaft was flooded.

There is no trace of the working today.