Lake Huron, which, with Lake Erie and St. Clair, washes the eastern boundary of the southern peninsula of Michigan, is two hundred and fifty miles long and its average width is about one hundred miles. Its depth is about eight hundred feet. The southeastern shore of Michigan presents a level surface covered with a dense forest, at points meeting the edge of the bank. The trees of this heavily-timbered land, with their massive shafts standing close together, "cast a gloomy grandeur over the scene, and when stripped of their foliage appear like the black colonnade of a sylvan temple." In advancing into the interior, a picturesque and rolling country opens to view, covered with oak-openings or groves of white oak thinly scattered over the ground, having the appearance of stately parks. The appearance of the surface of the country is as if it was covered with mounds, arranged without order, sometimes rising from thirty to two hundred feet in height, producing a delightful alternation of hill and dale, which is sometimes varied by a rich prairie or burr-oak grove. The principal rivers of the State are the Grand, St. Joseph's, Kalamazoo, the Raisin, the Clinton, the Huron, and the Rouge. The Grand is two hundred and seventy miles in length, and has a free navigation for steamboats which ply regularly between Lake Michigan and Grand Rapids, a distance of forty miles. The Saginaw empties into Lake Huron and is navigable for sixty miles. These, with the others we have named, interlock their branches running through different parts of southern Michigan, and while they beautify the landscape they afford water-power and fertilize the soil. The river Cheboy-e-gun is the largest stream in the northern portion of the lower peninsula and empties into the Straits of Mackinaw opposite Bois Blanc Island. At its mouth is a village containing two steam saw mills and one water saw mill. A light-house stands a mile or two east from this point. Brook-trout, bass, pike, pickerel, and perch, are caught at the entrance of the river. In the fall and spring numerous water-fowl resort to the upper forks of the river and to the small lakes forming its sources. These lakes also abound with a great variety of fish, which can be taken by spearing.