Karakul, Qarokul is a 25 km diameter lake within a rather large 52 km impact crater. It is located in the Tajik National Park in the Pamir Mountains in Tajikistan.
Wikipedia https://en.wikipedia.org/wiki/Karakul_(Tajikistan)
Address Tajikistan
Coordinates 39°1'46.354" N 73°24'25.003" E