The Patomskiy Crater is a mysterious geological formation located in the remote forests of Siberia. It is believed to have been formed by a meteorite impact some time in the past, though its exact age is unknown. The crater is roughly circular in shape, with a diameter of around
The Patomskiy crater or Patom crater, also known as Конус Колпакова, Konus Kolpakova "Kolpakov cone") is a peculiar rock formation located in the Bodaibo District of the Irkutsk region of southeastern Siberia, 360 kilometres (220 mi) 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 (520 ft) and its height about 40 metres (130 ft); the cone's crown is ring-shaped, and in its center there is a smaller mound with a height of about 12 metres (39 ft). The volume of the crater is estimated as 230,000–250,000 cubic metres, with a weight of about one million tons.