| Yes, I would say that Ohio and Pennsylvania border Canada. So does the International Boundary Commission. http://www.fas.org/sgp/crs/misc/RS21729.pdf Maybe it would help to know that the Great Lakes states' and provinces' borders don't end at the shoreline, they extend into the Great Lakes. Because of this, about 36.2% of Lake Erie is within Ohio's boundaries, and 7.6% of Lake Erie is within Pennsylvania's boundaries. |