River IL

Swan Pond Ditch

Illinois • 38.5975, -87.5700

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

12 mi

20 km

Elevation

446′ → 392′

54 ft drop

Stream Order

Large River

Slope

0.08%

4.3 ft/mi

Drainage

28 mi²

73 km²

Avg Flow

-- cfs

1.4 mph velocity

Path to Mouth

487 mi

784 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