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Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients.
Geology of Wisconsin. The geology of Wisconsin includes Precambrian crystalline basement rock over three billion years old. A widespread marine environment during the Paleozoic flooded the region, depositing sedimentary rocks which cover most of the center and south of the state. [1]
A general map of Wisconsin. Wisconsin, a state in the Midwestern United States, has a vast and diverse geography famous for its landforms created by glaciers during the Wisconsin glaciation 17,000 years ago. The state can be generally divided into five geographic regions—Lake Superior Lowland, Northern Highland, Central Plain, Eastern Ridges ...
The regions of Wisconsin, as described by the Wisconsin DNR. The Wisconsin DNR uses the following regions [3]. Northern (NO) Counties: Ashland, Barron, Bayfield ...
Five counties in Wisconsin have been renamed, but otherwise kept their same borders. [11] Bad Axe County existed from 1851 to 1862. It was named after the Bad Axe River and the Battle of Bad Axe. It was renamed to Vernon County in 1862. [12] Dallas County existed for 10 years, from 1859 to 1869.
The Northern Highland is a geographical region in the north central United States covering much of the northern territory of the state of Wisconsin. The region stretches from the state border with Minnesota in the west to the Michigan border in the east, and from Douglas and Bayfield Counties in the north to Wood and Portage Counties in the ...
The Sturgeon Bay Ship Canal was dug by a private group headed by then-president of Chicago and North Western Railway, William B. Ogden, between July 8, 1872 and the late fall of 1881. Although smaller craft began using the canal in 1880, it was not open for large-scale watercraft until 1890. Timber along the canal route was burned to get rid of ...
Following is a list of dams and reservoirs in Wisconsin.. All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3), or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3).