River MN

South Marais River

Minnesota • 48.0826, -97.1307

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

9 mi

15 km

Elevation

811′ → 792′

18 ft drop

Stream Order

Large River

Slope

0.04%

2.0 ft/mi

Drainage

23,258 mi²

60,239 km²

Avg Flow

-- cfs

1.8 mph velocity

Path to Mouth

248 mi

399 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