Lake Karakul is a high-altitude lake located in the Pamir Mountains of Tajikistan, near the border with Afghanistan and Kyrgyzstan. It is situated at an altitude of about 3,900 meters (12,800 feet) above sea level and is the largest lake in the region. The lake is fed by several small streams and is surrounded by high mountains, including the Pamir-Alay and the Hindu Kush ranges.

The name Karakul means "black lake" in Tajik, and it is said to be one of the highest saltwater lakes in the world. The lake is famous for its stunning natural beauty and unique landscape, which includes steep rocky cliffs, towering peaks, and vast stretches of barren desert. The surrounding area is sparsely populated and is home to a few nomadic tribes who herd yaks and other livestock.

Despite its harsh environment, Lake Karakul is home to several species of fish, including the endangered snow trout. The lake also attracts a variety of birdlife, including snowcock, lammergeier, and snow leopard.

Lake Karakul is a popular destination for tourists who come to enjoy its natural beauty and explore the surrounding mountains. The lake is also an important stop on the Silk Road, the ancient trade route that connected China to the Mediterranean. Today, visitors can still see the ruins of caravanserais, or roadside inns, that once served as important stopping points for travelers on this historic route.