Ostrovnoy, Murmansk Oblast

Ostrovnoy (Островно́й), previously known as Murmansk-140 (Му́рманск-140), is a closed town in Murmansk Oblast, Russia. Population:

History
The first naval base was established here in 1915. There is no rail link to Ostrovnoy and the settlement is reachable by coastal ship, helicopter or small plane in winter.

Until 1981, the town was known as Gremikha.

The Gremikha Naval Base was one of the Northern Fleet's main facilities for servicing nuclear submarines.

Administrative and municipal status
Within the framework of administrative divisions, it is, together with six rural localities, incorporated as the closed administrative-territorial formation of Ostrovnoy—an administrative unit with the status equal to that of the districts. As a municipal division, the closed administrative-territorial formation of Ostrovnoy is incorporated as Ostrovnoy Urban Okrug.