Kummakivi is a large balancing rock in Finland. The 7-meter long boulder lies on a convex bedrock surface with a very small footprint but it cannot be rocked with human force.
The Kummakivi Balancing Rock is a natural feature found in a scenic forest region of Ruokolahti, a municipality in the region of South Karelia, in the southeastern part of Finland. This feature consists of two boulders, one perched precariously on the top of the other. Although the upper rock looks as though it would roll off at any given moment, this has not happened. Additionally, if a human being were to apply force to the rock, it would not budge even the slightest bit.
The name of this Finnish balancing rock, ‘Kummakivi’, has been translated to mean ‘strange rock’. Two rocks make up this unusual geological formation. The rock on the bottom has the shape of a curved mound. It is lodged in the earth and has a smooth, convex surface. Resting on the top of this bedrock is another huge rock. The contact point between these two rocks is rather small, and it looks as though the upper rock is performing an impossible balancing act.
Anyone looking at the Kummakivi Balancing Rock for the first time would probably be expecting the upper rock to roll off at any time. Yet, the rock is firmly anchored onto the bedrock, and it has yet to be pushed over (or even moved slightly) by any human being. The ancient inhabitants of this area, who no doubt was perplexed by the sight of this natural wonder, sought to find an explanation as to how this balancing rock came to be in such a baffling position.