The on going subsidence issue at this mining site can be viewed below.
https://www.groundsure.com/lincoln-mining-case-study/
We have found a good write up online for this mining site .
https://www.photrek.co.uk/wordpress/?page_id=324l
Wilson Mine, Mid Lincoln Ironstone Mines, Greetwell. Looking N. Lincolnshire Limestone overlying Northampton Ironstone, Greetwell. The limestone, part of the Inferior Oolite, shows light in the photograph; the ironstone, containing about 33 per cent iron as mined, is dark. 1933 BGS archive
Long Harry mine
Long Harry Mine, Mid Lincoln Ironstone Mines, Greetwell. Looking N. Lincolnshire Limestone overlying Northampton Ironstone, Greetwell. The picture shows men working out the ironstone at the quarry-face, Long Harry Mine. 1933 BGS archive .
Long Harry Mine, Mid Lincoln Ironstone Mines, Greetwell. Looking N. Lincolnshire Limestone overlying Northampton Ironstone, Greetwell. The view shows disused adits of Long Harry Mine. 1933 BGS archive
Long Harry Mine, Mid Lincoln Ironstone Mines, Greetwell. Looking N. Lincolnshire Limestone overlying Northampton Ironstone, Greetwell. Similar section to last (A 6318). Trucks leaving the Long Harry Mine, laden with ironstone. 1933 BGS archive.
The adit position can still be found today for the Grundy no 1 mine