Dr. Bruce rambles on about his 4000 Mile odyssey, travelling around the Great Lakes. Visiting the 45th Parallel, the half way point between the North Pole and the Equator, stood at the Geographical centre of North America in South Dakota and crossed the abyss where the water flows, the point where water eventually makes it to the Atlantic Ocean or move a few feet west and the water flows to the Arctic Ocean. Plus a bunch of other stuff!