The Cuyabeno River is located in Sucumbios, Ecuador. The river starts in the high part of the Cuyabeno Reserve and ends in the Aguarico River. In the Siona - Secoya language, Cuyabeno means "Kindness River"".[1]
References
Reserva de Producción FaunÃstica Cuyabeno (spanish) http://www.reservacuyabeno.org/