Creek SD

South Fork Alkali Creek

South Dakota • 43.0478, -103.9778

Hydrography profile Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

7 mi

10 km

Elevation

4,181′ → 3,822′

359 ft drop

Stream Order

Medium River

Slope

1.04%

55.0 ft/mi

Drainage

6 mi²

15 km²

Avg Flow

-- cfs

1.1 mph velocity

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