River IL

Wyoming Slough

Illinois • 41.4345, -90.9664

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

5 mi

9 km

Elevation

544′ → 543′

1 ft drop

Stream Order

Major River

Slope

0.00%

0.2 ft/mi

Drainage

196,583 mi²

509,147 km²

Avg Flow

-- cfs

3.0 mph velocity

Path to Mouth

1,007 mi

1,621 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

Data from USGS & NOAA for informational purposes only. More