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Upper Midwest Environmental Sciences Center

Upper Mississippi River - Select a Reach

The reach and pool pages are used to access Web pages that contain links to aerial photographs, GIS data, and project information. The reaches themselves are used to describe areas of similar geomorphology, vegetation cover, and land use practices.

Reach 1 - Navigation Pools 1 through 13

Map of three reaches

Reach 1 extends from Minneapolis, Minnesota to Lock and Dam 13 located near Clinton, Iowa. This reach contains large areas of off-channel water and large acreages of aquatic vegetation. Only 3% of the relatively narrow floodplain is located behind agricultural levees.

Reach 2 - Navigation Pools 14 through 26

Reach 2 extends from Lock and Dam 13 to Lock and Dam 26. The floodplain in this reach contains limited aquatic vegetation, a higher proportion of water in channels, and 53% of the floodplain is located behind agricultural levees.

Reach 3 - Lock and Dam 26 to the confluence with the Ohio River

Reach 3 extends from Lock and Dam 26 to the river's confluence with the Ohio River. This reach contains almost no aquatic vegetation, a high proportion of the water in channel habitats, and 82% of the floodplain is located behind agricultural levees.

UMESC Projects - Complete listing of UMESC projects conducted along the Upper Mississippi River.
About the Upper Mississippi River System

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URL: http://www.umesc.usgs.gov/rivers/upper_mississippi/select_a_reach.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: March 13, 2014