Cusco’s South Valley Hydro-Road Trip: Tipón, Pikillacta, and Beyond Southeast of Cusco, Route 3S carves through a thinly visited valley where Inca hydraulic engineering meets pre-Inca urban planning just thirty-two kilometers from the city center. The south valley circuit — anchored by Tipón’s still-functioning water channels and Pikillacta’s Wari grid […]