River MD

South River

Maryland • 38.1047, -78.9469

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

53 mi

85 km

Elevation

1,835′ → 1,038′

797 ft drop

Stream Order

Medium River

Slope

0.29%

15.1 ft/mi

Drainage

224 mi²

581 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

468 mi

753 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

Access Sites on South River

There are 4 boat ramps, launches, and public access points on South River.