River SC

Willow Swamp

South Carolina • 33.0370, -80.9551

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

14 mi

22 km

Elevation

117′ → 42′

75 ft drop

Stream Order

Medium River

Slope

0.10%

5.5 ft/mi

Drainage

52 mi²

134 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

83 mi

133 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