River SD

South Fork Grand River

South Dakota • 45.6487, -102.6433

Length

147 mi

237 km

Elevation

3,491′ → 2,266′

1,225 ft drop

Stream Order

6

Large River

Slope

0.16%

8.3 ft/mi

Drainage

1,606 mi²

4,161 km²

Avg Flow

-- cfs

1.4 mph velocity

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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