Ian Frazier said this quote

It reflects like an optical instrument and responds to changes in the weather so sensitively that it seems like a part of the sky rather than of the land. And along with all that, Baikal is distinctly Asiatic: if a camel caravan could somehow transport Baikal across Siberia to Europe, and curious buyers unwrapped it in a marketplace, none would mistake it for a lake from around there.