Creek SD

Knocker Creek

South Dakota • 45.2527, -101.9443

Reviewed mapped path Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

6 mi

10 km

Elevation

2,368′ → 2,223′

145 ft drop

Stream Order

Stream

Slope

0.46%

24.2 ft/mi

Drainage

6 mi²

16 km²

Avg Flow

-- cfs

0.7 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