Creek SD

East Branch Willow Creek

South Dakota • 44.9715, -100.5859

Hydrography profile Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

25 mi

40 km

Elevation

2,219′ → 1,616′

603 ft drop

Stream Order

Medium River

Slope

0.46%

24.3 ft/mi

Drainage

39 mi²

100 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