Congo Fan Valley References Congo Fan Valley submarine plateau, Atlantic Ocean 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: Congo CanyonThe Congo Fan Valley is at least 135 miles (220 km) long and has relief diminishing down the fan, from 600 feet (180 m) to about 100 feet (30 m). Read MoreThe Congo Fan Valley is at least 135 miles (220 km) long and has relief diminishing down the fan, from 600 feet (180 m) to about 100 feet (30 m). Read More