Known as “The Dark Blue Pearl”, Lake Khuvsgul is Mongolia's largest and deepest pure lake. Located in the northernmost province, it is the largest tributary stream of Lake Baikal in Russia. Lake Khuvsgul is 136 km long, 36 km wide, 262 meters (for known measurement) deep and is located at an altitude of 1645 m above sea level and is frozen from January until April or May. It's the second largest fresh water lake in Central Asia. It's inhabited by nine species of fish including the Siberian grayling and lenok. Fishing and sport fishing are becoming popular in the lake area. Taiga (deep forest) Fauna and Flora, Tsaatan or known as reindeer herder, practicing reindeer breeding are the main attractions for tourist. Different ethnic groups live in the area: Khalh, Darhadt, Buryat. Tsaatans reindeer herders are lived. Lake Khuvsgul is on the important migration route for birds from Siberia, thus facilitating marvelous opportunities for bird watching.