Siberian Hills

The Yana uplands are a country of ridges and intermontane valleys in northeastern Siberia. The Sartang and Dulgalakh rise among these mountains and meet to form the Yana, which flows north toward the Laptev Sea. Forest grows on lower slopes and along river valleys, while the higher ridges stand exposed to the severe continental climate. Long, intensely cold winters give way to a short northern summer.