Band of Holes

The Band of Holes, also known in Spanish as Monte Sierpe (serpent mountain) or Cerro Viruela (smallpox hill), is a structure consisting of approximately 5,200 human-sized and stone-lined pits found in the Pisco Valley on the Nazca Plateau in Peru. Modern residents near the site have no knowledge of who made the pits nor how they were used. For many years, it has been speculated that they might be graves, defensive positions, or storage places. 3 feet deep, and that the structure might be related to regional produce trade or to accounting for taxation using produce.

In 2025, new scientific analysis suggested further support for that concept and encouraged more detailed research.