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, Cumbria, High Cup Nick. High Cup Gill — also known as High Cup Nick — is a strikingly symmetrical U-shaped valley carved deep into the Pennine escarpment near Appleby-in-Westmorland, Cumbria, within the North Pennines Area of Outstanding Natural Beauty.

England, Cumbria, High Cup Nick. High Cup Gill — also known as High Cup Nick — is a strikingly symmetrical U-shaped valley carved deep into the Pennine escarpment near Appleby-in-Westmorland, Cumbria, within the North Pennines Area of Outstanding Natural Beauty.

England, Cumbria, High Cup Nick. High Cup Gill — also known as High Cup Nick — is a strikingly symmetrical U-shaped valley carved deep into the Pennine escarpment near Appleby-in-Westmorland, Cumbria, within the North Pennines Area of Outstanding Natural Beauty.

England, Cumbria, High Cup Nick. High Cup Gill — also known as High Cup Nick — is a strikingly symmetrical U-shaped valley carved deep into the Pennine escarpment near Appleby-in-Westmorland, Cumbria, within the North Pennines Area of Outstanding Natural Beauty.

England, Cumbria, High Cup Nick. High Cup Gill — also known as High Cup Nick — is a strikingly symmetrical U-shaped valley carved deep into the Pennine escarpment near Appleby-in-Westmorland, Cumbria, within the North Pennines Area of Outstanding Natural Beauty.

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, Northumberland / County Durham, Derwent Reservoir. Tree on the banks of the Derwent Reservoir, during the winter months.

England, Northumberland / County Durham, Derwent Reservoir. Tree on the banks of the Derwent Reservoir, during the winter months.

England, Northumberland / County Durham, Derwent Reservoir. Trees submerged in flood waters in the Derwent Reservoir.

England, Northumberland / County Durham, Derwent Reservoir. Trees submerged in flood waters in the Derwent Reservoir.

England, Northumberland / County Durham, Derwent Reservoir. Trees submerged in flood waters in the Derwent Reservoir.

England, County Durham, Derwent Valley. Infrared Black and white shot of the peaceful Derwent Valley

England, County Durham, Derwent Valley. Infrared Black and white shot of the peaceful Derwent Valley

England, County Durham, North Pennines. Panoramic view of the Derwent Valley in the North Pennines Area of Outstanding Natural Beauty and European Geopark

England, County Durham, Weardale. Hazy sunset over the hills of the Northern Pennines.

England, County Durham, Weardale. Hazy sunset over the hills of the Northern Pennines.

England, County Durham, River Tees. The River Tees and the north Pennines, downstream of the High Force falls in County Durham.

England, County Durham, River Tees. The River Tees and the north Pennines, downstream of the High Force falls in County Durham.

England, County Durham, River Tees. The River Tees and the north Pennines, downstream of the High Force falls in County Durham.

England, County Durham, River Tees. The River Tees and the north Pennines, downstream of the High Force falls in County Durham.