Creek SD

Fourmile Creek

South Dakota • 43.7046, -103.6930

Hydrography profile Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

64 mi

103 km

Elevation

5,499′ → 2,516′

2,983 ft drop

Stream Order

Medium River

Slope

0.89%

46.8 ft/mi

Drainage

47 mi²

121 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

Rain Radar