The North Siberian Lowland, also known as Taymyr Lowland, is a plain with a relatively flat relief separating the Byrranga Mountains of the Taymyr Peninsula in the north from the Central Siberian Plat

The Buolkalakh is a river in Yakutia, Russia. It is a tributary of the Olenyok with a length of 305 kilometres and a drainage basin area of 8,780 square kilometres.