Grand Valley References Grand Valley valley, Colorado, United States 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: Grand JunctionIt lies in the Grand Valley (elevation 4,586 feet [1,398 metres]), at the confluence of the Colorado and Gunnison rivers. Read MoreIt lies in the Grand Valley (elevation 4,586 feet [1,398 metres]), at the confluence of the Colorado and Gunnison rivers. Read More