River IL

Fourche a Renault

Illinois • 37.9709, -90.8995

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

13 mi

22 km

Elevation

908′ → 686′

222 ft drop

Stream Order

Medium River

Slope

0.31%

16.6 ft/mi

Drainage

65 mi²

169 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

295 mi

475 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

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Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar