the ergun river in autumn

landscape horizon hill field sky mountain nature plain tree prairie morning autumn agriculture cloud plateau grass plant flower ergun river sunset sino-russian border mongolia china bend birch blue bog boundary calm clear coast dusk extensive fall farm forest genhe grand grassland grazing green herd high hulunbuir intertidal lake land lands marsh marshland natural neimenggu nightfall overlook panorama pasture quiet ranch reflection russia russian scenery sight sino swamp trees view village water wet wetland wild wildernessbrook yellow white