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River Tees

River Tees
River
High force.jpg
High Force on the River Tees
Country England
Region Durham, Yorkshire
Tributaries
 - left Harwood Beck, Hudeshope Beck,
Eggleston Burn, Skerne, Billingham Beck
 - right Maize Beck, Lune, Balder, Greta, Leven
Source
 - location Cross Fell
 - elevation 754 m (2,474 ft)
 - coordinates 54°42′02″N 2°28′02″W / 54.7006°N 2.4673°W / 54.7006; -2.4673
Mouth North Sea
 - location between Hartlepool and Redcar
 - elevation 0 m (0 ft)
 - coordinates 54°38′54″N 1°08′51″W / 54.6483°N 1.1474°W / 54.6483; -1.1474Coordinates: 54°38′54″N 1°08′51″W / 54.6483°N 1.1474°W / 54.6483; -1.1474
Length 137 km (85 mi)
Basin 1,834 km2 (708 sq mi)

The River Tees (/tz/) is in northern England. It rises on the eastern slope of Cross Fell in the North Pennines, and flows eastwards for 85 miles (137 km) to reach the North Sea between Hartlepool and Redcar near Middlesbrough.

The river drains 710 square miles (1,800 km2) and has a number of tributaries including the River Greta, River Lune, River Balder, River Leven and River Skerne. Before the reorganisation of the historic English counties, the river formed the boundary between County Durham and Yorkshire. In its lower reaches it now forms the boundary between the ceremonial counties of County Durham and North Yorkshire, while in the highest part of its course it forms the boundary between the historic counties of Westmorland and Durham. The head of the valley, whose upper portion is known as Teesdale, has a desolate grandeur, surrounded by moorland and hills, some exceeding 2,500 feet (760 m). This area is part of the North Pennine Area of Outstanding Natural Beauty.


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