Cass County topographic map
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About this map
Name: Cass County topographic map, elevation, terrain.
Location: Cass County, Illinois, United States (39.87294 -90.58361 40.12440 -89.99381)
Average elevation: 167 m
Minimum elevation: 128 m
Maximum elevation: 227 m
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Mississippi River
United States > Illinois > Hancock County > Pontoosuc
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: 161 m
