Kummakivi

Kummakivi (lit. 'odd stone')[1] is a large balancing rock in Ruokolahti, Finland. The 7-metre (23 ft) long boulder lies on a convex bedrock surface with a very small footprint but so firmly that it cannot be rocked with human force.[2]

Kummakivi in September 2015.
Another angle with person for scale

According to scientific consensus, it was likely moved into its place by shifting masses of ice 11,000 to 12,000 years ago. Where exactly it originates from is unknown. Kummakivi has been protected since 1962. A pine tree originating from the 1980s grows on top of the boulder.

The boulder is located in a forest in the western part of the Ruokolahti municipality, near the border of Puumala.[3]

References
  1. Kummakivi, Unusual Places.org.
  2. Shields, Jesslyn (24 August 2022). "Kummakivi, Finland's Balancing Rock, Seems to Defy the Laws of Physics". HowStuffWorks. Retrieved 28 March 2023.
  3. Kummakivi balancing rock, Atlas Obscura.

61.4933°N 28.4294°E / 61.4933; 28.4294

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