Yor

Yor lies in the country of the Iur, a right-bank tributary of the lower Zeya also called the Bolshoy Iver. Its headwaters are marshy, with moss growing across extensive areas beneath the water. The stream joins the Zeya above the mouth of the Selemdzha; together these rivers carry water south through the Amur basin. The surrounding lowland is crossed by many smaller streams and wetlands.