Water played a large part in the lead mining industry of the North Pennines but a tiny reservoir like this one on the N. side of the Cow Green Reservoir road would have been a small player. Disused, it's now heavily overgrown.
Uploaded to Geograph by Trevor Littlewood on 8 August 2010
Photo © Trevor Littlewood, 8 August 2010. Licensed for reuse under this Creative Commons licence