The Canadian river drains the eastern slope of the Rocky Mountains and flows in a general south-easterly direction through Texas into Oklahoma, where it empties into the Arkansas.
The St Lawrence is far the most important Canadian river from the historic and economic points of view, since it provided the main artery of exploration in early days, and with its canals past rapids and between lakes still serves as a great highway of trade between the interior of the continent and the seaports of Montreal and Quebec. It is probable that politically Canada would have followed the course of the States to the south but for the planting of a French colony with widely extended trading posts along the easily ascended channel of the St Lawrence and the Great Lakes, so that this river was the ultimate bond of union between Canada and the empire.
By these treaties, negotiated in 1866, the Cherokees gave the United States permission to settle other Indians on what was approximately the western half of their domain; the Seminoles, to whom the Creeks in 1855 had granted as their portion the strip between the Canadian river and its North Fork, ceded all of theirs, and the Creeks, Choctaws and Chickasaws ceded the western half of theirs back to the United States for occupancy by freedmen or other Indians.
It forms the water-parting between the upper waters of the Canadian river and the Rio Grande, and contains many of the loftiest peaks in New Mexico, among them being Truchas (13,275 ft.), Costilla (12,634 ft.) and Baldy (12,623 ft.).