River Tees

The Tees is a river in England. It starts in Cross Fell (a mountain) in the Pennines, and opens up into the North Sea. It forms a border between North Yorkshire and County Durham and also between the towns of Hartlepool and Redcar. It is also 85 miles or 137 kilometres long. High force waterfalls is 7 feet high. The Pennines Way was opened in 1965.