Qara Su

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For places in Iran, see Qarah Su.
Qara Su
Los Island
Island of the Baku Archipelago
Qara Su is located in Caspian_Sea
Qara Su
Qara Su
Coordinates: 39°50′N 49°32′E / 39.833°N 49.533°E / 39.833; 49.533
Country Azerbaijan
Region Absheron Region
 • Total 0.4 km2 (0.2 sq mi)
Elevation 25 m (82 ft)

Qara Su, Qarasu or Los Island, is an uninhabited sandy island south of the Bay of Baku, Azerbaijan. This island is part of the Baku Archipelago, which consists of the following islands: Boyuk Zira or Nargin, Dash Zira, Qum Island, Zenbil, Sangi-Mugan, Chikil, Qara Su, Khara Zira, Gil, Ignat Dash and a few smaller ones.[1]


Qara Su is an island of tectonic origin. It has a length of 900 metres (2,953 feet), and a width of 600 metres (1,969 feet). Formerly there were large gas fields on the island.

Qara Su is located about 8 km (5 mi) from the nearest shore;[2] its surrounding waters are very shallow.


There is very little vegetation on the island due to oil pollution as well as other factors.

Caspian seals, sturgeon, and numerous types of birds, such as teal ducks, herring gulls, and grebes are some of the species that can be found on and around Qara Su Island.[3]