River IL

Whitcomb Branch

Illinois • 38.9635, -90.9495

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

6 mi

10 km

Elevation

667′ → 439′

227 ft drop

Stream Order

Stream

Slope

0.68%

36.1 ft/mi

Drainage

5 mi²

12 km²

Avg Flow

-- cfs

0.6 mph velocity

Path to Mouth

479 mi

772 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

Loading the interactive map…

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

Rain Radar