River MD VA

North Branch Patapsco River

Maryland • 39.3833, -76.8167

Length

25 mi

40 km

Elevation

766′ → 248′

518 ft drop

Stream Order

5

Medium River

Slope

0.40%

21.0 ft/mi

Drainage

164 mi²

425 km²

Avg Flow

210 cfs

1.1 mph velocity

Path to Mouth

293 mi

472 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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