River OR

Olalla Slough

Oregon • 44.6190, -123.9244

Length

3 mi

5 km

Elevation

10′ → 2′

8 ft drop

Stream Order

5

Medium River

Slope

0.05%

2.4 ft/mi

Drainage

11 mi²

28 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

18 mi

28 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

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