River Leven, North Yorkshire

River Leven
The mouth of the Leven.
Location
Country	England
Physical characteristics
Source
• location	Kildale Moor, North Yorkshire
• coordinates	54°27′50″N 1°2′47″W / 54.46389°N 1.04639°W / 54.46389; -1.04639
• elevation	279 metres (915 ft)
Mouth
• location	River Tees at Yarm
• coordinates	54°30′31″N 1°20′12″W / 54.50861°N 1.33667°W / 54.50861; -1.33667
• elevation	16 metres (52 ft)
Length	46.2 kilometres (28.7 mi)
Basin size	196.3 square kilometres (75.8 sq mi)

The River Leven (pronounced /ˈlivən/) in North Yorkshire, England is a tributary of the River Tees. It rises on Warren Moor, part of Kildale Moor, in the North York Moors and flows to the north of the moors to join the River Tees at Yarm.