The center, officially named Ider (Mongolian: Идэр), is located 168 km south of the city of Mörön and 837 kilometers from the capital city, Ulaanbaatar.

The Galt sum was founded, under the name Ider and as part of Arkhangai aimag, in 1931.

In 1942, it became part of Khövsgöl aimag, in 1956 it was joined to Chandmani sum, in 1959 it was reestablished under the name Galt.

In 2004, there were roughly 183,000 heads of livestock, among them 83,000 sheep, 78,000 goats, 10,000 cattle and yaks, 11,000 horses, and 64 camels.

[1] About 25 km south of the sum center is a warm spring known as Salbartyn Rashaan.