“…The UGRB basin has been examined in a number of aspects including geology (Alvarado, Barquero, Taylor, López et al 2009;Alvarado, Barquero, Taylor, Mora et al, 2009), glacial landforms in summit areas above 3000 m (Bergoeing, 1977;Barquero & Ellenberg, 1983;Horn, 1990;Orvis & Horn, 2000;Lachniet & Seltzer, 2002), mapping of alluvial fans (Kesel & Spicer, 1985;Bergoeing, Brenes, Fernández, & Ureña, 2010), and its geomorphology (Quesada-Román, 2016;Quesada-Román, 2017). In this case we present a 1:25,000 scale geomorphological map of the Upper General River Basin (UGRB) in Costa Rica.…”