Pompey’s Pillar References Images Pompey’s Pillar rock monument, Montana, United States Ask Anything Homework Help Also known as: Pompey’s Tower 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: Sacagawea…Clark named Pompey’s Tower (now Pompey’s Pillar) on the Yellowstone after her son, whom Clark fondly called his “little dancing boy, Pomp.” Read More…Clark named Pompey’s Tower (now Pompey’s Pillar) on the Yellowstone after her son, whom Clark fondly called his “little dancing boy, Pomp.” Read More