Piedra Movediza

La Piedra Movediza ("Moving or shifting stone") was a balancing rock located in Tandil, Buenos Aires Province, Argentina.[1] Its weight was about 300 tons. It attracted attention and tourists because of the way it was balanced on the edge of a hill.[1] The stone fell and broke on 29 February 1912. Some sources say it fell due to vandalism or vibrations caused by explosions in a nearby quarry.

The stone prior to falling, c. 1890

History

It was located on the top of La Movediza hill, at the coordinates 37°18′34″S 59°10′00″W.

Replica of the original stone, installed 2007.

It was particularly interesting not only because of the way it balanced on the face of the hill, but also because it rocked from morning to evening in a very slow fashion (imperceptible to the eye). People used to place bottles under the bottom of the massive rock only to see them smashed later in the day.

It fell and broke on 29 February 1912. As there were no witnesses, the true time and cause of the fall are unknown.[2]

One theory for the cause of the fall was that the quarrymen were annoyed with the tourist visits to the place. Another possibility was that it fell due to vibrations from blasting of the bore in the quarries nearby.

In 2007 a copy of the stone was put in the same place where the original was situated, which is considered as a historical symbol of Tandil. This place was named "Parque Lítico La Movediza".

References
  1. Scheffel, Richard L.; Wernet, Susan J., eds. (1980). Natural Wonders of the World. United States of America: Reader's Digest Association, Inc. pp. 366. ISBN 0-89577-087-3.
  2. "Tandil Rocks". Moon Travel Guides. Archived from the original on July 1, 2010. Retrieved 19 January 2010.

Other sources (in Spanish)
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