Iskanderkul is a mountain lake of glacial origin in Tajikistan's Sughd Province. It lies at an altitude of 2,195 metres on the northern slopes of the Gissar Range in the Fann Mountains. Triangular in shape, it has a surface area of 3.4 square kilometres and is up to 72 metres deep. Formed by a landslide that blocks the Saratogh river, the outflow of the lake is called the Iskander Darya, which joins the Yaghnob River to form the Fan Darya, a major left tributary of the Zeravshan River.
134 km from Dushanbe and 23 km from the Dushanbe—Khujand road, Iskanderkul is a popular tourist destination.The lake takes its name from Alexander the Great's passage in Tajikistan: Iskander is the Persian pronunciation of Alexander, and kul means lake in many Turkic languages. There are two legends connecting the lake to Alexander.
Wikipedia https://en.wikipedia.org/wiki/Iskanderkul
Address Tajikistan
Coordinates 39°4'18.069" N 68°22'3.458" E