Lake Manly References Lake Manly ancient lake, California, 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: Death Valley/ Physical environment…a body of water (Lake Manly) filled the valley to a depth of as much as 600 feet (180 metres). More recently, some 2,000 to 5,000 years ago, a shallow lake occupied the floor of the valley, its evaporation producing the present salt pan. Read More…a body of water (Lake Manly) filled the valley to a depth of as much as 600 feet (180 metres). More recently, some 2,000 to 5,000 years ago, a shallow lake occupied the floor of the valley, its evaporation producing the present salt pan. Read More