📷 U.S. Forest Service- Pacific Northwest Region, Public domainMcKenzie Pass–Santiam Pass loop from Eugene
A loop from Eugene over the lava fields of McKenzie Pass and back along the McKenzie River past waterfalls and a deep blue spring-fed pool.
- Distance
- 317 km (197 mi)
- Driving
- 3 h 31 min
- Suggested days
- 2
- Stops
- 8
- States
- OR
- Updated
- July 14, 2026
At a glance: 2-day round trip of about 317 km (197 mi) with 8 stops, starting and ending in Eugene. About 3 h 31 min of driving in total.
More road trips in Oregon
Route description
From Eugene, OR-126 follows the McKenzie River east for about 55 miles to the junction with OR-242 near Belknap Springs. OR-242, the McKenzie Pass Highway, is a narrow road with tight hairpins, usually open only from late June to November. Vehicles over 35 feet are not allowed. Proxy Falls, a 1.5-mile loop across old lava to two waterfalls, is on the way up.
At the top of the pass, the Dee Wright Observatory is a stone shelter built by the Civilian Conservation Corps in 1935 in the middle of a vast lava field. Window slits point to the Three Sisters, Mount Washington, Mount Jefferson and other peaks. A paved half-mile trail explores the lava. The road then descends through forest to Sisters, about 15 miles east.
Sisters is a small western-style town with fuel, stores and a good campground. Return west on US-20 over Santiam Pass, open all year, and turn south on OR-126. Clear Lake, spring-fed and very cold, has a submerged forest visible from rowboats and a 5.5-mile trail around its shore. A little south, Sahalie Falls roars down just beside the road.
A 2.6-mile loop links Sahalie and Koosah falls along both banks of the river. Further south, a trail of about two miles each way leads to Tamolitch Blue Pool, where the McKenzie reappears after running underground; the lot fills early in summer, and a Northwest Forest Pass is needed at several trailheads. Follow OR-126 back to Eugene, about an hour and a half.
Stop-by-stop itinerary
In driving order. Distances are estimates between consecutive stops.
- 1Start
Eugene
OR - 2112 km
Proxy Falls
NatureMcKenzie Bridge, ORTwo waterfalls spilling over mossy cliffs on a 1.5-mile loop across old lava. The trailhead is a roadside pull-out on OR-242, which is closed in winter; a Northwest Forest Pass is required.
- 317 km
Dee Wright Observatory
ViewsSisters, ORA lava-rock shelter built by the CCC in 1935 at the top of McKenzie Pass, surrounded by a sea of black lava. Window slits frame a dozen Cascade peaks; a paved half-mile trail explores the flow.
- 424 km
Sisters
OR - 544 km
Clear Lake
NatureMcKenzie Bridge, ORA spring-fed lake so cold and clear that a forest drowned by lava about 3,000 years ago still stands underwater. A 5.5-mile trail circles the shore, and rowboats can be rented at the north end in summer.
- 63 km
Sahalie Falls
NatureMcKenzie Bridge, ORA roaring waterfall on the upper McKenzie River just off OR-126, with an overlook near the parking lot. A 2.6-mile loop continues downstream to Koosah Falls and back on the other bank.
- 712 km
Tamolitch Blue Pool
NatureMcKenzie Bridge, ORA vivid blue pool where the McKenzie River re-emerges after flowing underground through lava. The trail is about two miles each way through forest; the water is near freezing, and the trailhead lot fills early.
- 8105 km
Eugene
OR
Suggested stages and overnight stops
2 days, split by driving time. Campsites from OpenStreetMap: check opening dates before you go.
- Day 1: Eugene → Sisters · 96 mi · 1 h 42 minOn the way: Proxy Falls, Dee Wright Observatory.Overnight nearby, for example: Cold Springs Campground (4 mi); Indian Ford Campground (6 mi).
- Day 2: Sisters → Eugene · 101 mi · 1 h 48 minOn the way: Clear Lake, Sahalie Falls, Tamolitch Blue Pool.Overnight nearby, for example: Dexter Shores RV Park (17 mi); Armitage County Park Campground (4 mi).
Best time to go
The most pleasant months are usually May–June and September. Still fine, with some compromises, in April, July–August and October. July and August are the busiest months: book campsites early.
Estimate from long-term temperature averages, terrain and pass seasons
FAQs
How long is McKenzie Pass–Santiam Pass loop from Eugene?
2-day round trip of about 317 km (197 mi) with 8 stops, starting and ending in Eugene. About 3 h 31 min of driving in total.
How many days do you need for McKenzie Pass–Santiam Pass loop from Eugene?
We suggest 2 days: about 3 h 31 min of driving, which leaves time for the stops.
Where does McKenzie Pass–Santiam Pass loop from Eugene start and end?
It is a round trip that starts and ends in Eugene.
Which states does McKenzie Pass–Santiam Pass loop from Eugene pass through?
Oregon.
Where can you camp along McKenzie Pass–Santiam Pass loop from Eugene?
OpenStreetMap lists 89 campsites and motorhome stopovers within 19 mi of the stops on this route. For example: Dexter Shores RV Park, Patio RV Park and Big Lake Campground.
When is the best time for McKenzie Pass–Santiam Pass loop from Eugene?
The most pleasant months are usually May–June and September. Still fine, with some compromises, in April, July–August and October. (Estimate from long-term temperature averages, terrain and pass seasons)
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