Lake Çıldır , - Tzovák Hiusisó) is a large freshwater lake in the Ardahan Province

Ardahan Province

Ardahan Province is a province in the far north-east of Turkey, at the very end of the country, where Turkey borders with Georgia . The provincial capital is the city of Ardahan.- Geography :...

, northeastern part of Turkey

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

. It is located at 41.0425°N 43.2552778°E, close to the borders with Georgia

Georgia (country)

Georgia is a sovereign state in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the southwest by Turkey, to the south by Armenia, and to the southeast by Azerbaijan. The capital of...

 and Armenia

Armenia

Armenia , officially the Republic of Armenia , is a landlocked mountainous country in the Caucasus region of Eurasia...

. Lake Çıldır is located in the elevation of about 1900 m (6,233.6 ft) and surrounded by mountainous region. It has an area of 123 km² (47.5 sq mi) and maximum depth of about 42 m (137.8 ft). Water from the lake is used to irrigation

Irrigation

Irrigation may be defined as the science of artificial application of water to the land or soil. It is used to assist in the growing of agricultural crops, maintenance of landscapes, and revegetation of disturbed soils in dry areas and during periods of inadequate rainfall...

.