Farther east in the north is an extension of the West-Siberian Lowland: the North(1)-Siberian Lowland, also called the Khatanga Depression. This stretches from the lower Yenisey to the wide Lena(2) delta. North of it is the Taymyr(3) Peninsula (poluostrov), which contains a spine of mountains. South of that range is Lake (ozero) Taymyr(4).
(1) Severo in transliterated Russian.
(2) The lower course of the river and its delta are beyond the region described here.
(3) Also transliterated as Tajmjr.
(4) Asia's sixth or seventh largest.