Russia · Geography · Easy
Answer: Lake Baikal — Lake Baikal reaches a depth of 1,642 metres and is estimated to be 25–30 million years old, making it both the deepest and oldest freshwater lake in the world.
Lake Baikal reaches a depth of 1,642 metres and is estimated to be 25–30 million years old, making it both the deepest and oldest freshwater lake in the world.