Michigan | Capital, Map, Population, History, & Facts (2024)

Relief

The mildly rolling terrain and generally low elevations that characterize much of Michigan’s countryside appealed to the early agricultural settlers. The highest point in the Lower Peninsula, near Cadillac, rises only to about 1,700 feet (520 metres). Flat, nearly featureless plains also occur in many parts of the state; these are vestiges of the floors of large glacial lakes that existed some 10,000 to 14,000 years ago. In the mid-19th century, most of these flatlands were malarial swamps that deterred settlers and were the source of much angst for early farmers. Draining of the swamps, a tiring process, has yielded highly productive farmland since that time. Large sand dunes rim the shores of Lake Michigan. Much of the northern Lower Peninsula and the eastern part of the Upper Peninsula are wooded.

The western segment of the Upper Peninsula belongs to the Superior Upland (a region lying to the south of Lake Superior and stretching westward from the Upper Peninsula across northern Wisconsin and Minnesota). There, rock-cored hills, some so large as to be named the Huron and Porcupine mountains, provide more relief; the peaks of the Hurons rise above 1,900 feet (580 metres).

Drainage

In addition to being virtually surrounded by water, Michigan has an abundance of inland lakes, swamps, wetlands, and waterways. The state’s roughly 11,000 inland lakes, most of which are glacial in origin, range in size from less than an acre to the nearly 20,000 acres (8,100 hectares) of Houghton Lake in the north-central Lower Peninsula. Michigan’s rivers, which generally are shallow and narrow, drain the state’s high interior. Most of the larger rivers are found in the southern part of the Lower Peninsula, and they flow relatively evenly throughout the year. In the Upper Peninsula, where elevations are higher and snowfall is more plentiful, many rivers have a pronounced peak discharge in spring when the snow melts. Although several of the rivers, especially in the Upper Peninsula, have waterfalls, the navigability of the state’s waterways and the ease of portaging encouraged early settlement. Compared with those in nearby states, most of Michigan’s rivers are short; distances from the headwaters to the mouths of the major rivers (which usually empty into one of the Great Lakes) are usually less than 150 miles (240 km).

About 500 islands dot the lakes and rivers of Michigan; nearly 350 of them are named. Belle Isle, a public recreation centre, and Grosse Ile, largely residential, are well-known features of the Detroit River. Mackinac Island, near the Straits of Mackinac, is a resort on which motor vehicles are prohibited. Isle Royale, a virgin wilderness of almost 900 square miles (2,300 square km), is a national park in western Lake Superior, near Canada.

Soils

Michigan’s soils vary regionally, depending on a number of factors, including climate, landform, and vegetation, as well as wetness, which is mainly a function of texture (various combinations of sand, silt, and clay) and depth of the water table. Fertile clays and loams in the southern Lower Peninsula foster extensive agriculture, while less-productive dry sandy soils dominate in the northern Lower Peninsula. The Upper Peninsula has a few fertile areas, but most of the soil is either sandy and similar to that of the northern Lower Peninsula or wet and swampy. The soils of the western Upper Peninsula are acidic and rocky, rendering that region generally unsuitable for cultivation. Peat and muck soils, which formed from inland lakes and flat, wet plains that became filled with organic matter, are found throughout the state, especially in the eastern Upper Peninsula. Where they exist in the Lower Peninsula, these soils are particularly important for vegetable production and, more recently, for growing turfgrass (sod). Throughout much of the state, subsurface drainage has been necessary to make wet soils tillable and productive. In some of the sandier areas of the Lower Peninsula, overhead irrigation has become popular among farmers as a way to augment yields on dry and sandy but otherwise productive sites.