The Turkwel River (sometimes spelled Turkwell River) is a river flowing from Mount Elgon on the border of Kenya and Uganda to Lake Turkana. The river is called the Suam River from its source to the border at West Pokot County of Kenya. The name Turkwel is derived from the Turkana name for the river, Tir-kol, which means a river that "withstands the wilderness". The Turkwel begins on the lush green slopes of Mount Elgon and the Cherangani Hills, then traverses the , crosses the near Lodwar and empties into the world's largest desert lake, Lake Turkana. The river's flow is seasonally varied, and it is subject to flash floods in the rainy season.