River OR

North Fork Molalla River

Oregon • 45.0546, -122.3625

Hydrography profile Updated Jan 19, 2026

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USGS and NOAA data is for informational purposes. Source notes

Length

17 mi

28 km

Elevation

4,057′ → 524′

3,533 ft drop

Stream Order

Large River

Slope

3.89%

205.2 ft/mi

Drainage

56 mi²

145 km²

Avg Flow

310 cfs

1.5 mph velocity

Path to Mouth

178 mi

287 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