Remains of chimney in the Old Brick Yard, off Cross O'Cliff Hill, viewed from Public Footpath No. 40.
Lincolnshire County Council's Bracebridge Walk leaflet states :-
"The chimney and old clay pits are evidence of a brickworks established during the Lincoln building boom of the 1870s and 1880s.
This works amalgamated with three others in the area to form the Lincoln Brick Company.
It closed in the early 20th century because of competition from the Peterborough brick works.
The old clay pits have been taken over by hawthorn, hazel, elder and dogrose and provide an area ideal for birds and wildlife"