England, County Durham, North Pennines National Landscape. View across Teesdale from Whistle Crag, near Middleton-in-Teesdale.

England, County Durham, North Pennines National Landscape. View across Teesdale from Whistle Crag, near Middleton-in-Teesdale.

England, County Durham, Cow Green Reservoir. Aerial photo of Cow Green Reservoir, built to supply water to the industries of Teesside.

England, County Durham, Barnard Castle. A spring snowfall creates blizzard like conditions on farm land near Barnard Castle.

England, County Durham, Barnard Castle. A spring snowfall creates blizzard like conditions on farm land near Barnard Castle.

England, County Durham, Tees Dale. Farm building in a sheep field near to Bowlees.

England, County Durham, Tees Dale. Farm building in a sheep field near to Bowlees.

England, County Durham, Low Force. The River Tees cascades down the Low Force waterfall in County Durham.

England, County Durham, Low Force. The River Tees cascades down the Low Force waterfall in County Durham.

England, County Durham, Low Force. The River Tees cascades down the Low Force waterfall in County Durham.

England, County Durham, High Force. The River Tees cascades down the High Force waterfall in County Durham.

England, County Durham, High Force. The River Tees cascades down the High Force waterfall in County Durham.

England, County Durham, Middleton In Teesdale. A wild flower meadow and a stone built farm building in County Durham.