Walworth topographic map

Marquette County lies in central Wisconsin’s glaciated lowland-and-moraine country, where a generally subdued landscape is broken by sandy outwash plains, wet basins, lake margins, and low ridges left by Ice Age ice and meltwater. Elevations are modest but varied, from the broad, lower wetlands and waterways…

Average elevation: 259 m

A system of seventeen locks connects Lake Winnebago to Lake Michigan at Green Bay, an elevation drop of about 150 feet (45 m). This lock system is located along the lower Fox River and starts at the northwest corner of Lake Winnebago in the city of Menasha and ends at the mouth of Green Bay. One of the locks,…

Average elevation: 254 m

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The uppermost lock and dam on the Upper Mississippi River is the Upper St. Anthony Falls Lock and Dam in Minneapolis. Above the dam, the river's elevation is 799 feet (244 m). Below the dam, the river's elevation is 750 feet (230 m). This 49-foot (15 m) drop is the largest of all the Mississippi River locks…

Average elevation: 203 m

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Average elevation: 354 m

Jefferson's elevation is 797 ft (243 m) at the center of downtown.

Average elevation: 251 m

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