Stolbovoy Island, Remote Arctic island in Bulunsky Ulus, Russia.

Stolbovoy Island is a long, narrow island in the eastern Laptev Sea, 47 km from end to end and up to 10 km wide, lying 100 km southwest of Kotelny Island. Its shores rise as rocky cliffs 15 to 70 metres high, with conical stony mounds below them down to the beach. The interior is barren tundra of scattered herbs, lichens and mosses, rising to a highest point of 222 metres.

The island was first mapped by Russian explorer Yakov Sannikov in 1800, though wooden crosses found there pointed to earlier visits by Russian seafarers. Those markers suggest traders and explorers had already reached the site before any official survey was carried out.

The island is known among researchers who study the remote edges of Siberian Arctic geography. With no permanent settlement, it exists today almost entirely outside everyday human life, visited only by scientific expeditions.

The island can only be reached by boat or helicopter, and travel windows are limited to the short summer months when ice conditions allow. Anyone planning a visit should prepare for extreme cold and rapidly changing weather at any time of year.

The 5 km lake lies in the island's northwest, not the northeast, and is separated from the sea by a narrow spit. Russian sources call it Melkoye, a lagoon-type lake on the northwest coast, and note swampy ground around it and along the Stolbovoy River.