Northern entrance to Harecastle Tunnel, Trent and Mersey canal, Kidsgrove, Staffordshire. The orange water is the result of iron ore deposits leaching into the canal from the disused Brindley tunnel just yards to the right of this picture.
Northern entrance to Harecastle Tunnel, Trent and Mersey canal, Kidsgrove, Staffordshire. The orange water is the result of iron ore deposits leaching into the canal from the disused Brindley tunnel just yards to the right of this picture.