What Are the Top Three Land and Water Features of North Asia?

1. West Siberian Plain (Siberian Plain) – World's largest lowland plain (~2.6M km²), stretching from the Urals to the Yenisei River. Flat, swampy, drained northward by the Ob, Irtysh, and Yenisei into the Arctic Ocean.
2. Ural Mountains – 2,500 km range forming the conventional Europe-Asia boundary. Modest elevation (highest: Mt. Narodnaya, 1,895 m) but immense geological/mineral significance.
3. Laptev Sea – Arctic marginal sea north of Siberia (662,000 km²), between the Taimyr Peninsula and New Siberian Islands. Shallow, ice-covered much of the year; critical habitat for polar bears, walruses, seals, and Arctic fisheries.

These features define North Asia's physical geography: a vast sedimentary basin, an ancient orogenic belt, and a climatically decisive Arctic shelf sea.