It is a documentary feature film that deals with a curious phenomenon of nature in the Sierras de Tandilia (Argentina) and that includes La Piedra Movediza, where apparently a system of connections is woven between the different lithic elements of the area, forming a ritual landscape . The director of the documentary goes into this hypothesis to elucidate if there may be megalithic constructions related to the stars in the Tandilia System or if the location of the stones is simply the product of a chance of nature.

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