At first glance it looks as though it may be a road or even a field but you are looking at the overflow from the Wayoh reservoir pictured in 1957.

The Bolton News: Wayoh overflow, 1957

Water ran down the man-made ‘escape route’ and fed into Bradshaw Brook.

The chimneys you can see belonged to the Black Rock works at Turton Bottoms. Originally the site of a corn mill, it later became a spinning mill before housing a bleaching and dyeing operation.