LA LIBERTAD, PERU—According to an Andina report, researchers led by Henry Tantaleán of the National University of San Marcos are investigating a site in northwestern Peru’s Chicama Valley where members of the Chimu culture practiced large-scale agriculture between 500 and 600 years ago. The team members have uncovered three buildings and a series of irrigation channels in addition to the once-cultivated fields. The site was surrounded by a six-foot-tall wall. To read about Chimu burials of children and llamas, go to "Peruvian Mass Sacrifice," one of ARCHAEOLOGY's Top 10 Discoveries of 2019.