Lake St. Clair, though of small dimensions, is the next we meet in ascending the St. Lawrence. It commences above Detroit, and extends to forty miles in length and twenty in breadth. Lake Huron is of a triangular shape, each side measuring from 250 to 300 miles in length. Its islands are numerous, among which is one 100 miles long and eight broad, held sacred by the Indians as the residence of some of their divinities. This lake abounds with excellent fish, especially with a kind of trout, some of which are from four to five feet long, and weighing from sixty to seventy pounds.
Lake Superior is the largest body of fresh water in the world.
Its bottom is rocky and uneven, and its depth in many places is very great. It receives the waters of about forty rivers, though its only visible outlet is the St. Lawrence, of which it may be considered the source. It contains several islands, one of which, Isle Royale, is about 100 miles long and forty broad. Its northern banks are high and rocky, but afford some mines of virgin copper. It communicates with Lake Huron by the straits of St. Mary, but the St. Lawrence is here so rapid as not to be navigable by vessels of any description.