As a mobile monastery-town,
it was often moved to various places along the Selenge, Orkhon and Tuul rivers,
as supply and other needs would demand.
Located in the northern part of the country, it lies in a valley between the Selenge and Orkhon rivers about 150 miles(241 kilometres)(as the bird flies)
northwest of Ulaanbaatar, the capital.
The Selenga River(/sɛlɛŋˈɡɑː/, Selenge River, Mongolian:
Сэлэнгэ мөрөн, Selenge mörön; Russian Buryat: Сэлэнгэ гол/ Сэлэнгэ мүрэн, Selenge gol/ Selenge müren; Russian: Селенга́, IPA:) is a major river in Mongolia and Buryatia, Russia.