River OR

Black Rock Fork

Oregon • 43.1437, -122.5259

Hydrography profile Updated Jan 19, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

10 mi

16 km

Elevation

5,702′ → 2,003′

3,699 ft drop

Stream Order

Large River

Slope

6.93%

365.5 ft/mi

Drainage

31 mi²

81 km²

Avg Flow

75 cfs

1.1 mph velocity

Path to Mouth

223 mi

358 km to ocean

Classification

Headwater

Source Stream

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