Skip to content
McKenzie River, not Cougar Hot Springs

Hot springs

Cougar Hot Springs in Oregon: Visiting Terwilliger

Cougar Hot Springs, officially called Terwilliger Hot Springs, is a series of natural soaking pools in the Willamette National Forest near Cougar Reservoir. From the trailhead, the walk to the pools is about one-quarter mile.

Updated October 4, 2026 · Cheyenne Black · Triple Oaks Realty · McKenzie River, Oregon — Pixabay user 15079075 / Pixabay Content License

Also known as

Terwilliger Hot Springs

Same destination

Walk to the pools

About one-quarter mile

Check current trail conditions

Location

Near Cougar Reservoir

Willamette National Forest

The answer

The Recreation.gov destination page describes six pools arranged down a forested ravine and identifies the site as clothing optional. Plan for an outdoor visit with a trail approach, then check the current road access, hours, and fees before leaving Eugene.

Know what kind of visit you are planning

DetailWhat it means for your visit
Natural poolsWater and footing differ from a maintained swimming pool
Short trail approachBring footwear for the walk and keep your belongings manageable
Clothing-optional settingExpect a mix of bathing preferences and respect other visitors' privacy
Forest-road accessCheck more than the weather in Eugene before leaving
Day-use destinationArrange any overnight stay separately

The Recreation.gov destination page is the federal listing for the pools. Confirm road access, hours, and fees before leaving Eugene.

Getting there from Eugene

If your group wants changing-room services or a conventional resort pool, compare the facilities carefully before choosing where to go. Terwilliger's appeal is the natural setting.

The usual approach follows Highway 126 east through the McKenzie corridor, then Forest Road 19, also known as the Aufderheide Scenic Byway, toward Cougar Reservoir and the hot-springs parking area.

Use the named destination and current manager directions to plan the trip. Do not assume a route suggested through the wider forest-road network is open simply because it appears on a map.

Access from the Highway 126 side was restored after bridge work in spring 2026, according to local reporting. That reopening does not establish today's road conditions. Check ODOT TripCheck for the highway and the Forest Service for the road and recreation site.

Allow time for the drive, parking, the walk in, and the return. A shorter visit to the pools can still take a substantial part of the day once you include travel from Eugene.

The trail and the pools

The Terwilliger trailhead listing identifies Rider Creek Trail as the route to the springs. The short distance is helpful for planning, but it does not guarantee easy footing or an accessible path for every visitor.

Ask about current trail conditions if mobility or balance is a concern. Wear shoes suited to the approach and take care around wet rock near the pools.

The water temperature varies between pools and can change. Choose a comfortable spot rather than assuming every pool is suitable, and step out if you become uncomfortable. Keep drinking water and the belongings you need within reach without spreading across shared access areas.

Hours, fees, and reservations

Check the Willamette National Forest's Terwilliger page or contact the McKenzie River Ranger Station at 541-822-3381 for current visitor information. Ask about the road, operating hours, fees, payment methods, and any cleaning or maintenance closure that could affect your arrival.

Recreation.gov does not offer reservations for this destination. Do not assume that a listing on that site means you have booked a soaking time or that space will be available when you arrive.

Keep your plan flexible. If a closure, road restriction, or full parking area changes the day, use another established destination rather than parking where it is prohibited or entering a closed area.

Clothing and shared-space etiquette

The pools are clothing optional, so discuss that with your group before the trip. Respect the privacy of other visitors and avoid including them in photographs without permission.

Alcohol is prohibited at the hot springs. Follow current posted rules, pack out what you bring, and keep paths and entry points clear for others.

The springs are a day-use destination. If you want to stay in the area, arrange lodging or an authorized campground separately and check its own season and access requirements.

Exploring the McKenzie corridor

A hot-springs trip is one way to experience this part of Lane County. Our McKenzie River fishing guide and waterfall guide offer other outing ideas. Choose additional stops based on the time and access available that day.

If you are considering living in the area, explore Vida and McKenzie Bridge alongside your daily travel needs. Contact Cheyenne Black through Team Burke to discuss homes and land in the corridor.

Explore properties for sale

Cougar Hot Springs questions

Are Cougar and Terwilliger the same hot springs?+

Yes. Terwilliger is the official name used on the federal destination listing; Cougar is the commonly used alternative name.

How long is the walk to the pools?+

The published distance is about one-quarter mile each way. Check current trail conditions before your visit.

Is Cougar Hot Springs clothing optional?+

Yes. The federal destination page identifies the pools as clothing optional. Respect others' privacy and follow posted rules for the site.

Is it open year-round?+

Do not assume uninterrupted access. Check the current road and site conditions with the Forest Service, especially during winter weather or other closures.

Can I camp at the hot springs?+

No. The hot-springs site is for day use. Arrange an authorized overnight destination separately.

Certified Luxury Home Specialists

Planning a move to Lane County?

We match neighborhoods and schools to the date you need to be moved in.

By submitting, you agree to be contacted by Team Burke via call, email, or text for real estate services. Reply STOP to opt out.