The Lena River starts just west of Lake Baikal in Siberia and travels north before it reaches the Laptev Sea, which is part of the Arctic Ocean. The river's journey takes it 2,800 miles.
The river is the 10th longest river almost 20 percent of Russia lies within its basin. The river's width fluctuates between 9 miles and 15 miles wide. The Lena River's delta at the Laptev Sea is one of the largest in the world at close to 12,000 square miles. The river is also one of the cleanest in the world, as it currently is not affected by any dam, hydroelectric power station or industrial complex.