Diahot River References Diahot River river, New Caledonia 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: New Caledonia/ Relief and drainageThe Diahot River, the longest river in New Caledonia, flows for about 60 miles (100 km) toward the northern tip of the island along the western escarpment of the Mount Panié range. Read MoreThe Diahot River, the longest river in New Caledonia, flows for about 60 miles (100 km) toward the northern tip of the island along the western escarpment of the Mount Panié range. Read More