Walworth topographic map

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: 833 ft

Average elevation: 709 ft

Average elevation: 932 ft

Average elevation: 830 ft

Average elevation: 1,040 ft

Average elevation: 876 ft

Rock Island is a mostly wooded island off the tip of Wisconsin's Door Peninsula at the mouth of Green Bay, in Door County, Wisconsin. The 974.87-acre (394.5 ha) island is approximately 1.6 miles (2.6 km) long and 1.1 miles (1.8 km) wide. It rises to 65 meters above Lake Michigan, making it the highest in…

Average elevation: 617 ft

Hurley was at the center of a boundary dispute between Michigan and Wisconsin, culminating in a United States Supreme Court case in 1926, confirming Hurley belonging to Wisconsin. The Montreal River was mapped in detail in 1841 by Lieutenant Thomas Jefferson Cram of the United States Land Office Department of…

Average elevation: 1,493 ft

Average elevation: 1,499 ft

Average elevation: 997 ft

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Average elevation: 912 ft

Average elevation: 1,381 ft

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: 850 ft

Average elevation: 971 ft

Average elevation: 1,161 ft

Average elevation: 1,099 ft

Average elevation: 823 ft

Average elevation: 1,289 ft

Average elevation: 617 ft

Average elevation: 604 ft

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: 666 ft

Average elevation: 889 ft

Average elevation: 1,247 ft

Average elevation: 850 ft

Average elevation: 594 ft

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Average elevation: 968 ft

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Average elevation: 912 ft

Average elevation: 781 ft

Average elevation: 1,348 ft

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

Average elevation: 823 ft

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