River NJ

Millstone River

New Jersey • 40.2865, -74.5185

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

43 mi

70 km

Elevation

231′ → 21′

210 ft drop

Stream Order

Large River

Slope

0.09%

4.8 ft/mi

Drainage

6,527 mi²

16,905 km²

Avg Flow

-- cfs

1.8 mph velocity

Path to Mouth

80 mi

128 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