freshwater lake, Oigon is located in the valley between Bulnai and Khankhukhii mountains. There are two small lakes
near the lake, called Shorvog and Nogoon. Several small rivers flow into the
lake and forms wet meadow with dense grasses around its inlets. Drought is
drying out some streams that enter to the lake.
birds: Globally threatened
bird species such as Saker Falcon (Falco cherrug) and Lesser Kestrel (Falco
naumanni) occur at the site. Migratory bird species including Ruddy
Shelduck (Tadorna ferruginea), Common Goldeneye (Bucephala clangula)
and Herring Gull (Larus argentatus) occur, exceeding 1% of their
flora and fauna: Grey Wolf (Canis
lupus), Red Fox (Vulpes vulpes), Pallas’s Cat (Felis manul) and
Siberian Marmot (Marmota sibirica), listed in Red Data Book of Mongolia, occur at the site.