The Zanjón de la Aguada is a 27-kilometer channelized waterway that flows through the heart of Santiago, Chile's capital city, in the Santiago Metropolitan Region. Originating at the Quebrada de Macul at an elevation of approximately 740 meters above sea level, it travels from east to west before emptying into the Río Mapocho at an elevation of around 455 meters. Once a natural watercourse that historically marked the southern boundary of the colonial Chacras de Ñuñoa, the zanjón has been heavily modified over the centuries and now functions primarily as an urban stormwater and drainage channel. A notable feature along its corridor is the Victor Jara Park (formerly known as the Zanjón de la Aguada flood park), a 0.4-mile-long open hydraulic flood detention area that opened in 2018 as part of Santiago's Inner Ring Master Plan — a broader urban revitalization initiative aimed at recovering land from the former railway belt that once defined the city's limits.