taken 13 years ago, near to Todmorden, Calderdale, England
Penstock next to Walsden Water
It looks as if this could be closed to divert the flow in a side channel or tributary to a culvert feeding the mills that were where the Morrisons Supermarket is now. The machinery is still in place.
The 'Pennine Ginnel' in SD9323 : Pennine Ginnel isn't a ginnel. A ginnel is a passage between two buildings.
The photo actually shows 'Old Lane' which was once the main road. It's been made narrower at the top over the years. Further down the lane you can still get a car up it.