The pre-Hispanic field systems of La Mojana in the Colombian Caribbean are so vast you can see them from a plane at high altitude. “These field systems are so impressive that people have assumed they were achieved by hierarchical chiefdoms. Pre-Hispanic societies were inventive and cooperative, they worked with nature rather than trying to obstruct it. Evidence for the use of raised field systems in this region ends before the Spanish arrived in the sixteenth century. ReferenceJ. Vieri, F. Montejo Gaitán, M. Carrero-Pazos, M. Martinón-Torres, ‘Collective labour and sustainability of pre-Hispanic field systems in La Mojana’, Communications Sustainability (2026).