Note 3 — Chapter III
Reading edition
The Lena river has an estimated length of not less than 3000 miles. It rises in the Baikal mountains and flows north and east past the towns of Kirensk, Vitimsk, and Olekminsk to Yakutsk, thence it turns to the north-west and enters the Arctic Ocean, forming a wide delta. The Lena receives several large tributaries, viz., the Vitim, about 1400, the Olekma, about 800, and the Aldan, about 1300 miles long.