Peru uses drones to protect archaeological sites

Peru, a country with a rich historical heritage, has added drones to archaeology's classical tools for surveying, registering and protecting archaeological sites from climate- and human-caused damage.

Drones can reduce explorations by months and even years to days and weeks 
[Credit: Reuters/Mariana Bazo]

The use of unmanned aerial vehicles, or drones, has so far helped in registering 375 archaeological sites, or 63.5 percent of those in the Lima metropolitan area, and most of them are located among buildings and avenues in the city of more than 9 million people.

While a drone hovers above a pre-Columbian truncated pyramid in the Lima district of San Borja, the project coordinator at the Culture Ministry, Aldo Watanave, described for EFE how difficult it was to develop a registry of archaeological sites before the arrival of drones.

"Back then, to obtain aerial images, we had to check records of aerial photography from the 1950s, 1960s and 1970s, or we were required to wait until a satellite orbited over a specific area and took a picture," Watanave said.

Watanave recalled the long hours of work required to prepare scale and 3D maps of an archaeological site on the ministry's equipment.