* Astronomy

Uzon Caldera  developed 40 thousand years ago on the site of a huge volcano destroyed by a set of bursting eruptions. The last cataclysm inside the Caldera (8,500 years ago) left its trace as a blasting crater about one kilometre in diameter. The following centuries of intensive hydro-thermal activity have developed a unique symbiosis of volcanoes and wildlife in Uzon. Being a part of the Kronotsky Zapovednik, it is registered as a natural site specially cared for.
The Uzon Caldera is about 10 km in diameter, and inside it, behind steep walls, there is a complete "museum" collection of everything that Kamchatka is famous for: hot sources and cold rivers, poisonous mud cauldrons and pure lakes full of fish, a berry tundra and a birch forest, mountains and bogs, animals and birds.

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