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ForestMatters, LLC

Kentucky Falls

Siuslaw National Forest, Oregon · 3 min read

Distance
5.8 mi
Elevation Gain
800 ft
Difficulty
moderate
Route Type
Out-And-Back
Best Season
March through November
Dog Friendly
Yes
Difficulty Score
5 / 10
Trailhead Amenities
Restroom
None
Parking
Free
Cell Service
No Signal
Water
Nearby
Camping
None
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Conditions, regulations, and fees change frequently. Verify with the local ranger district before your trip. Full disclaimer

At a Glance

  • Two-tiered waterfall system: Upper Kentucky Falls (80 ft) and Lower Kentucky Falls (100 ft)
  • North Fork Smith River Falls visible from the viewing area
  • Remote old-growth canyon setting rarely crowded even in summer
  • Hemlock and spruce old-growth along the entire approach
  • Best Coast Range waterfall hike south of Sweet Creek

Overview

Kentucky Falls sits at the end of a long forest road drive and a 2.9-mile trail descent, which is precisely why it remains one of the least crowded great waterfalls in Oregon. Most Coast Range hikers never make it this deep into the Siuslaw interior. Those who do find two waterfalls plunging over basalt ledges into old-growth canyon, with the North Fork Smith River Falls completing a three-falls view from a single platform.

The approach trail descends through old-growth western hemlock and Sitka spruce that have never been logged. The canyon bottom is cool and damp even in summer. The sound of the falls begins to carry at least a quarter mile before the viewing area.

Kentucky Falls is within Siuslaw National Forest in the southern Coast Range. The forest road network required to reach it puts it beyond the casual visitor category, which maintains its quiet character.

The Route

Miles 0 to 1.5: Ridge Trail

The trail begins at approximately 2,300 feet on Dunn Ridge and immediately starts descending. The first 1.5 miles passes through second-growth and transitional forest as the trail works its way off the ridge. The trail is well-marked.

Miles 1.5 to 2.9: Old-Growth Canyon

The forest transitions to old-growth as the trail descends into the North Fork Smith River drainage. Hemlock trees 4 to 5 feet in diameter are common. The canyon walls narrow. The sounds of running water increase.

The viewing platform at approximately 2.9 miles is the trail's end for most visitors. Upper Kentucky Falls is visible from here, as is Lower Kentucky Falls and the North Fork Smith River Falls. The combined view is the payoff for the 800-foot descent.

Note: the 800 feet must all be regained on the return. Budget energy for the climb back to the trailhead.

When to Visit

March through November is the realistic season, with spring (March-May) offering the highest waterfall volumes. Summer is drier and the roads are more reliable. Fall is pleasant. Winter visits require checking forest road conditions carefully; the access roads can be impassable after significant rain events.

What to Bring

  • Trekking poles for the steep return climb.
  • Many hikers carry 1.5 to 2 liters of water. Individual needs vary with temperature.
  • Food for the drive and a longer-than-usual approach day.
  • Rain gear for shoulder season visits.
  • An offline map: cell service is absent on the forest road approach and throughout the trail.

Practical Details

Northwest Forest Pass required (as of 2026). No restrooms at the trailhead. Dogs are allowed and must be leashed.

Follow Leave No Trace principles for waste management in this remote setting. For veterans and active military seeking free pass information, see veteran benefits for national forests.

Check current conditions specifically for forest road status before attempting the drive, as road conditions determine whether this trip is feasible.

Getting There

From Florence on Highway 126, drive east approximately 8 miles to Mapleton. From Mapleton, take North Fork Siuslaw Road (Forest Road 5070) and connect via Dunn Ridge Road (FR 23) to the trailhead. Total drive from Florence is approximately 35-40 miles on forest roads.

From Eugene, take Highway 126 west toward Florence. Follow signed forest road routes from Mapleton. Total drive from Eugene is approximately 60-70 miles.

The access roads are gravel and unmarked on many mapping apps. Download specific GPS coordinates and route before leaving pavement. Allow 60-75 minutes for the forest road portion of the drive.

Trailhead Parking

Kentucky Falls Trailhead off Dunn Ridge Road (Forest Road 23), approximately 35 miles from Mapleton. Small gravel lot with space for 8-10 vehicles. Northwest Forest Pass required (as of 2026).

← Back to Siuslaw National Forest

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Frequently Asked Questions

What makes Kentucky Falls different from other Oregon Coast Range waterfalls?
Kentucky Falls is distinguished by its two-tiered configuration and its remote setting. Upper Kentucky Falls drops approximately 80 feet and Lower Kentucky Falls drops about 100 feet, with the two accessible from the same viewing area. The North Fork Smith River Falls is also visible from the same viewpoint, making it a three-waterfall view from one location.
How difficult is the trail to Kentucky Falls?
The trail is moderately difficult. The 800 feet of elevation loss on the way in (and gain on the way out) is the main challenge. The trail is well-maintained but the final descent to the viewing area is steep. Most reasonably fit hikers find it manageable.
Is Kentucky Falls worth the drive from the coast?
Kentucky Falls requires a significant drive on forest roads from the coast or from Eugene. Most visitors rate it highly for its combination of dramatic falls, old-growth setting, and solitude. If waterfall hiking is a priority, it is worth the effort.
Are the roads to Kentucky Falls passable in a regular car?
The forest roads are passable in a standard two-wheel-drive vehicle with adequate clearance in dry conditions. Some sections are rough. High-clearance vehicles are recommended. Avoid the approach after heavy rain when roads can deteriorate.
Is there swimming at Kentucky Falls?
The plunge pool below Lower Kentucky Falls is accessible but cold and deep. Wading at the pool edge is possible in late summer when water levels are lower. The viewing area trail does not have easy pool access; most people view the falls from above.