Water level
Water levels began to rise on July 24, 1869, but slowly decreased from August 5, 1869. The water level began to rise again on August 22, only beginning to decline from September 3. This flood was classified as a "large" flood. In Verkhneudinsk, the water level reached 386 cm, and in Lake Baikal, the water level rose by more than 2 m. The water level in the Angara River also rose and did not return to its pre-flood levels by January 1870.