Creek SD

Threemile Creek

South Dakota • 43.3338, -102.2570

Hydrography profile Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

11 mi

18 km

Elevation

0′ → 0′

0 ft drop

Stream Order

Medium River

Slope

0.00%

0.0 ft/mi

Drainage

20 mi²

52 km²

Avg Flow

-- cfs

0.9 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

Access Sites on Threemile Creek

There are 2 boat ramps, launches, and public access points on Threemile Creek.