Tuul River
| Tuul River (Туул гол) | |
| Tola | |
| River | |
 The Tuul flowing through the Gorkhi-Terelj National Park
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| Name origin: Mongolian: tuulakh, "to wade through" | |
| Nickname: Queen Tuul | |
| Country |  Mongolia |
|---|---|
| Aimags | Khentii, Töv, Bulgan, Selenge |
| Tributaries | |
| - right | Terelch River |
| City | Ulaanbaatar |
| Source | Khan Khentii Strictly Protected Area |
| - location | Erdene sum, Töv aimag |
| - coordinates | 48°30′40″N 108°13′20″E / 48.51111°N 108.22222°E |
| Mouth | Orkhon River |
| - location | Orkhontuul sum, Selenge |
| - coordinates | 48°56′50″N 104°48′0″E / 48.94722°N 104.80000°ECoordinates: 48°56′50″N 104°48′0″E / 48.94722°N 104.80000°E |
| Length | 704 km (437 mi) |
| Basin | 49,840 km2 (19,243 sq mi) |
The Tuul River or Tula River (Mongolian: Туул гол, Chinese: 土拉河; pinyin: Tǔlā Hé; in older sources also Tola) is a river in central and northern Mongolia. Sacred to the Mongols, the Tuul is generally called the Khatan (Queen) Tuul in Mongolian. It is 704 kilometres or 437 miles long and drains an area of 49,840 square kilometres or 19,240 square miles. The river is called the "Duluo river" in the Book of Sui, a Chinese historical work completed in 636 AD. The Secret History of the Mongols (1240 AD) frequently mentions a "Black Forest of the Tuul River" where the palace of Wang Khan was located. The Ming dynasty (1368–1644) was established by the progressive expulsion of the Mongol Empire from China. After capturing Beijing, the Ming's founding Hongwu Emperor defeated the Mongols at the Tula River in 1372, driving them back to the Orhon River. The following Hongwu Emperor would find it necessary to defeat the Oirats at the river Tula again in 1414.
The river originates in the Khan-Khentein-Nuruu Nature Reserve in the Khentii Mountains, in the Erdene sum of Töv aimag. From there it travels southwest until it reaches the territory of Ulaanbaatar. Its water runs through the southern part of the capital, continuing in western direction in large loops. When it meets the border of Bulgan aimag it turns north, running along that border. After it enters Selenge aimag, it discharges into the Orkhon River near the sum center of Orkhontuul sum.
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Wikipedia