STS084-721-29 Selenga River Delta, Lake Baykal, Russia May 1997
The delta of the Selenga River, emptying into one of the oldest and deepest fresh water lakes in the world, Baykal, can be seen in this east-looking view. The Selenga River rises in the Khangai Mountains of northwest Mongolia and flows 616 miles (991 km) to its mouth at Lake Baykal. The delta is made-up of a swampy-grassy area that is the summer home to numerous birds and other species of wildlife. Industries, especially paper and pulp factories in the Selenga River Valley and in the industrial city of Ulan-Ude, were polluting the Selenga River and Lake Baykal. Since the 1980's, restrictions on the industrial waste dumping have gone in effect, and the flow of the polluted river water into the lake has been reduced significantly, and in some cases, completely stopped. The future of Lake Baykal and its unique environmental habitat looks brighter than it did just a few decades ago. Agricultural fields (angular patterns) can be seen scattered throughout the scene, but are especially noticeable on the lower slopes of hills near the right center of the image.

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