Advancing westward from the northern Atlantic we find ourselves at once between the headwaters of the St. John River on the south and sparkling Etchemin on the north, and we cross the slight track which joins these important streams. Not many miles on we find ourselves between the Kennebec on the south and the Chaudière on the north, and cross the pathway between them which has been traversed by tens of thousands until even the passes in the rocks are worn smooth. The valley of the Richelieu heads off the watershed and turns it southwest; we accordingly pass down the Green Mountain range, across the historic path from Otter Creek to the Connecticut, and below Lake George we pass northward across the famous road from the extremity of that lake to the Hudson. Striking northward now we head the Hudson in the Adirondacks and come down upon the strategic watershed between its principal tributary, the Mohawk, and Lake Ontario. The watershed dodges between Wood Creek, which flows northward, and the Mohawk, at Rome, New York, where Fort Stanwix guarded the portage path between these streams. Pressing westward below Seneca Lake and the Genessee, our course takes us north of Lake Chautauqua, where we cross the path over which canoes were borne from Lake Erie to Lake Chautauqua, and, a few miles westward, we cross the portage path from Lake Erie to Rivière aux Boeufs, a tributary of the Allegheny. Pursuing the height of land westward we skirt the winding valley of the Cuyahoga and at Akron, Ohio, find ourselves crossing the portage between that stream and the Tuscarawas branch of the Muskingum. As we go on, the valley of the Sandusky turns up southward until we pass between its headwaters and just north of the Olentangy branch of the Scioto. We face north again and look over the low-lying region of the Black Swamp until the Maumee Valley bars our way and we turn south to cross the historic portage near Fort Wayne, Indiana, which connects the Maumee and the Wabash. By a zig-zag course we approach the basin of Lake Michigan and pass deftly on the height of ground between the St. Joseph flowing northward and the Kankakee flowing southward. Here we cross another famous portage path. Circling the extremity of Lake Michigan by a wide margin, our course leads us to a passage way between the Chicago River and the Illinois. Here we find another path. The Wisconsin River basin turns us northward now, and near Madison, Wisconsin, we run between the head of the Fox and the head of the Wisconsin and cross the famed portage path which connected them. Just beyond lies the Mississippi, and if we should wish to avoid it we would be compelled to bear far north among the Canadian lakes.