The Rootbeer River is a river in the Land of Mo. Peanut trees grow near it, and there is a Fruit Cake Island in the middle of the river. Duchess Bredenbutta lives in a pretty house on its bank. At the end of the Land of Mo, the Rootbeer River flows down a Great Hole and into Turvyland. It is forbidden by law to swim in the Rootbeer River, since many people come to the river to drink. (The Magical Monarch of Mo)