Harry S. Truman Dam and Reservoir References Harry S. Truman Dam and Reservoir dam, Missouri, 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: Lake of the OzarksThe Harry S. Truman Dam and Reservoir began operation in 1979 and impounds the Osage and Grand rivers to extend facilities at the lake’s western end. Read MoreThe Harry S. Truman Dam and Reservoir began operation in 1979 and impounds the Osage and Grand rivers to extend facilities at the lake’s western end. Read More