Dalai Lake National Nature Reserve

[2] It was "twinned" with the Hay-Zama Lakes Wildland Provincial Park, Canada.

[2] Its southern edge is on the Buir nuur lake that straddles the border of China and Mongolia, The major rivers are Orshuun Gol [fr] (a distributary of Khalkhin Gol) and Kherlen River.

When the water level is high, then an outflow to the Hailar River opens.

The area includes the third, small lake, Ulan nuur (Wulannoor) approximately between the Hulul and Buir, connected to Orshuun.

The most important fauna of the reserve include Purple heron, White-naped crane, Eurasian spoonbill, Mongolian gazelle.