A narrow road to Cow Green Reservoir in England
Cow Green is a reservoir at an elevation of 510m (1,673ft) above the sea level, located on the county border between Cumbria and County Durham, in England.
Set high on the northeastern part of the country, the road to the reservoir is totally paved but pretty narrow, scarcely wide enough for two cars to pass at the same time. The reservoir is 2 miles (3 km) long, holds back 40,000 million litres of water, and was constructed between 1967 and 1971 to supply the industries of Teesside.
The road to the reservoir is very steep, hitting a 9.0% of maximum gradient through some of the ramps. Starting at Langdon Beck, a village in County Durham, the ascent is 4.66km (2.9 miles) long, ending on a car park. A private gated road leads from the south side of the car park 2 miles to the reservoir dam and Cauldron Snout.
The weather on this zone is harsh and highly unpredictable. As the area is high up, the weather may change suddenly and can be chilly even on a fine day. The water regularly freezes over in the winter. The drive offers superb views to Cross Fell, Great and Little Dun Fells, Meldon Hill and Mickle Fell amongst others and these North Pennine peaks.