Page "Toledo War" Paragraph 9

Because the territorial boundary line between the U. S. and Canada ran through the middle of Lake Erie and then up the Detroit River, combined with the prevailing belief regarding the location of the southern tip of Lake Michigan, the framers of the 1802 Ohio Constitution believed it was the intent of Congress that Ohio's northern boundary should certainly be north of the mouth of the Maumee River, and possibly even of the Detroit River.

Ohio would thus be granted access to most or all of the Lake Erie shoreline west of Pennsylvania, and any other new states carved out of the Northwest Territory would have access to the Great Lakes via Lakes Michigan, Huron, and Superior.