Dalanjargalan ( mn, Даланжаргалан, Seventy happiness also Ulaantolgoi)) is a

sum Sum most commonly means the total of two or more numbers added together; see addition. Sum can also refer to: Mathematics * Sum (category theory), the generic concept of summation in mathematics * Sum, the result of summation, the additio ...

(district) of Dornogovi Province in south-eastern

Mongolia Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 millio ...

. Sum center is Olon Ovoo railway station on Trans-Mongolian Railway (

Ulan Bator Ulaanbaatar (; mn, Улаанбаатар, , "Red Hero"), previously anglicized as Ulan Bator, is the capital and most populous city of Mongolia. It is the coldest capital city in the world, on average. The municipality is located in north c ...

Beijing } Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...

) line and abandoned Soviet air force base location. Eldev Coal Mine is 21 km N from sum center. In 2009, its population was 2,554.Statistics office of Dornogovi Aimag/ Report 2009

References

Districts of Dornogovi Province {{Mongolia-geo-stub