As part of IOM’s monitoring of the migrants’ caravans from the Northern Triangle of Central America, flow monitoring activities were implemented from October 2018 to January 2019, which included both situational reports with population estimations and characterization surveys to migrants on their route. IOM also undertakes information management activities under the coordination of the Information Unit, which produced a nationwide key informants-based perception survey on migration, transit and internal displacement in 2016 in El Salvador, Guatemala and Honduras. Finally, human mobility tracking activities are complemented by continuous flows monitoring of migrants returning to the countries of origin, information which is available on: