Which Siberian peninsula is the northernmost part of mainland Asia?

The Siberian peninsula forming the northernmost part of mainland Asia is the Taymyr Peninsula.

The Taymyr Peninsula occupies the far north of Russia’s Siberian Federal District. It extends between the Yenisei Gulf of the Kara Sea to the west and the Khatanga Gulf of the Laptev Sea to the east, making it a huge Arctic landform rather than a narrow coastal projection. Its northern tip reaches Cape Chelyuskin, commonly identified as the northernmost point of the Eurasian mainland.

The landscape includes Lake Taymyr and the rugged Byrranga Mountains, as well as extensive tundra and polar-desert environments. Severe winters and a short summer limit settlement, but the peninsula is home to Indigenous peoples including Dolgans, Nganasans, Nenets, Enets and Evenks.

Readers sometimes confuse the Taymyr Peninsula with the nearby Yamal or Gydan peninsulas, which also project into Arctic seas. The key distinction is geographic: Taymyr reaches farthest north on the continuous mainland, while islands farther north are not part of mainland Asia.