Creek SD

Porcupine Creek

South Dakota • 45.0301, -103.8714

Reviewed mapped path Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

68 mi

110 km

Elevation

5,247′ → 3,045′

2,202 ft drop

Stream Order

Large River

Slope

0.61%

32.1 ft/mi

Drainage

109 mi²

284 km²

Avg Flow

-- cfs

1.4 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