What is the Potomskiy crater?
No meteor debris.
No volcanic activity.
300 years old.
The Patomskiy crater or Patom crater is a peculiar rock formation located in the Bodaibo District of the Irkutsk region of southeastern Siberia, 360 kilometres from the district center Bodaibo. It is a large mound made of shattered limestone blocks on the slopes of the Patom Highlands in an area of dense taiga. Its base diameter is about 160 metres and its height about 40 metres, the cone's crown is ring-shaped, and in its center there is a smaller mound with a height of about 12 metres. The volume of the crater is estimated as 230,000–250,000 cubic metres, with a weight of about one million tons.