Atlasov Island

Atlasov Island (Ostrov Atlasova) is a small volcanic island in the Kuril chain, administratively part of Sakhalin Oblast, Russia. It is notable for its near-perfect conical volcano that dominates the island’s landscape.

The island’s main feature is a single steep stratovolcano that rises directly from the shoreline, creating a prominent, almost symmetrical volcanic cone visible from surrounding waters. The island lacks significant habitation and is visited mainly by scientists and experienced expeditions.

Atlasov has been shaped by volcanic activity and is part of the tectonically active Kuril arc; eruptions and volcanic processes have formed the island’s steep slopes and coastal cliffs. Its remoteness and rugged terrain have limited human use and development.

Geographically the island sits in the northwestern Pacific as the northern end of the Kuril Islands chain, east of the Kamchatka Peninsula and within Sakhalin Oblast’s maritime jurisdiction.

• Remote volcanic island: The island is the northernmost of the Kuril chain and is characterised by rugged volcanic terrain with restricted access for ordinary tourists.

What to See #

• Central volcanic cone (Mount Alaid): The island is dominated by a single steep, symmetrical stratovolcano whose prominent cone rises directly from the sea and is the island's defining topographic feature.
• Population and access: No significant permanent settlements are present; the island is largely uninhabited and visited mainly by specialists for geological and natural-history interest.