River WY

South Fork Powder River

Wyoming • 43.2598, -106.8638

Hydrography profile Updated Feb 1, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

74 mi

120 km

Elevation

6,475′ → 4,502′

1,973 ft drop

Stream Order

Large River

Slope

0.50%

26.6 ft/mi

Drainage

1,168 mi²

3,025 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