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Alton Marina

Illinois River near Alton, IL

River62.1 mi

Around here

Around Illinois River

Two Rivers National Wildlife Refuge5.5 miMississippi River - Upper6.2 mi20 mi

Data Source: Recreation.gov · Public land: USGS PAD-US

About this river

Illinois River is a 62.1 mile river near Alton Marina in Illinois. Streamflow is measured at the USGS gauge Illinois River at Valley City, IL (site 05586100). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.

Boat access nearby

8 mapped launches sit in the mapped area of Illinois River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

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