The Tuul River coming from the Khentii Mountains is 819 km long and
joins the Orkhon River. A lot of big and small rivers join with the Tuul River.
Although the river is mostly rocky in the upstream, it is surrounded by a
willow forest when it gets through Ulaanbaatar city. In the 1950s when fire
wood was used to create a raft the water level of the river was much
higher. The river Tuul is one of three famous Mongolian rivers. It will be
forever kept sacred in the history of Mongolia. It is also mentioned frequently
in the book of Mongolian secret history. Since ancient time, the river has been
affectionately referred to as "queen Tuul" because Mongolians believe
that the river Tuul is the most gracious and forgiving to women.