River IL

Walker Branch

Illinois • 37.5205, -90.8592

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

8 mi

12 km

Elevation

1,079′ → 552′

527 ft drop

Stream Order

Stream

Slope

1.32%

69.7 ft/mi

Drainage

5 mi²

13 km²

Avg Flow

-- cfs

0.6 mph velocity

Path to Mouth

382 mi

615 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