Sarez Lake is a mountain lake deep in the inaccessible Pamir Mountains of Central Tajikistan. The lake was created in 1911, when an earthquake, estimated at 7.0 at the Richter Scale, and a following landslide of 2.2 million cubic meters, created a huge natural barrier known as the Usoi Dam. At a height of 567 meters, it is the largest dam in the world, either natural or man-made.
