In Peru’s Pisco Valley, there is a strange alignment of thousands of shallow pits. The pits are arranged in a narrow band about 14 to 20 meters wide, that run up a hill for about 1,500 meters. Their purpose or function is a mystery.
The feature is locally known as Monte Sierpe (serpent mountain) or Cerro Viruela (smallpox hill). It is also called by the name Band of Holes.
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Photo: Gustavo Rios
Source: amusingplanet.com