The Evoron lake is a relic lake within the Evoron-Chukchagirskaya lowland of the Solnechny rayon. The water plane area is 194 sq. km. The lake shape is an irregular oval: the maximum length is 30 km, width is 20 km, depth is 3 m. The main tributary is the Evur river (283 km). The river Devyatka, the right-side branch to the Gorin river rises at the lake. There are small islands close to southern and eastern lake shore.
The most interesting part of the lake is northern most with the main feeding river of Evur. Many species of waterfowl nest here, including the rare in the Krai gray goose; colonies of grey heron are found along with fish hawk, erne, Steller's sea eagle, golden eagle, and Far Eastern curlew. The Evoron lake laying in the middle of the Evoron-Chukchagirskaya lowland is the most significant bio-geographical system in the region. Here lies one of three main branches of bird's seasonal migratory flows, who inhabits in the summer on the huge spaces of North-East Asia, and in the winter - in countries of South-East Asia. Besides that the Evoron lake remains one of few not polluted yet reservoirs in the Amur river basin.
In spring larger shoals of common white fish, wild carp, sheat-fish, pike, and carp from the winter pot-holes in river branches especially the Evur where they stay for winter, come for spawning and fattening to the lake from the Amur. It causes abundance of fish-eating birds.
The indigenous people of the area are the Nanaian. Lower down the Devyatka river is the oldest settlement of this nationality, the Kondon village.