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Elsen Tasarkhai is a part of the Mongol Els sand dunes, which stretch from the Tuv, Uvurkhangai, and Bulgan provinces all the way west to become part of the Khugnu Khan mountain range.
The sand dunes are 80 km long in total. Dividing the southern part of the sand dunes with the so-called northern Mongolian sand, Khugnu Tarna is the main road. River Tarnat flows in the western part of the sand dunes, it is sodden under its surfaces, so shrubberies such as willow, elm, dogwood, shrubbery grow there.