River IL

Fox Branch

Illinois • 39.4648, -90.1533

Reviewed mapped path Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

3 mi

5 km

Elevation

640′ → 541′

99 ft drop

Stream Order

Stream

Slope

0.56%

29.5 ft/mi

Drainage

2 mi²

5 km²

Avg Flow

-- cfs

0.7 mph velocity

Path to Mouth

1,282 mi

2,064 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