Tünel (Mongolian: Түнэл) is a sum of Khövsgöl aimag.

The sum center, officially named Bulag (Mongolian: Булаг), is located 46 km north-east of Mörön and 667 km from Ulaanbaatar.

In 1938, a "Khar Usny Jingiin" negdel was founded in this area, some other small negdels named "Altan Taria", "Khödölmör", "Egiin Dolgio" etc.

In 2004, there were about 101,000 heads of livestock, among them 50,000 goats, 34,000 sheep, 10,600 cattle and yaks, 6,600 horses and 84 camels.

[1] M. Nyamaa, Khövsgöl aimgiin lavlakh toli, Ulaanbaatar 2001, p. 138f