Negro River References Negro River river, Nicaragua Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Nicaragua/ Drainage…the most important are the Negro and Estero Real rivers, which empty into the Gulf of Fonseca, and the Tamarindo River, which flows into the Pacific. Read More…the most important are the Negro and Estero Real rivers, which empty into the Gulf of Fonseca, and the Tamarindo River, which flows into the Pacific. Read More