DESC: Chart US018R offers ooverage of both the U.S. and Canadian sides of the southern portion of Lake Huron. Detailed coverage of the St. Clair River, Lake St. Clair, Detroit River, and the U.S. portion of Lake Erie through Buffalo. Also includes coverage of the Canadian portion of Lake Erie and the western side of Lake Ontario, including detailed coverage of Long Point Bay, Welland Canal, the Niagara River, and Toronto.