Terwilliger (Cougar) Hot Springs
Terwilliger (Cougar) Hot Springs is a developed thermal spring listed in Lane County, Oregon Hot Springs near Blue River. Reported soak temperature is 104°F with a historical source temperature of 104°F — actual conditions may differ. Access is subject to admission fees, and clothing policy is listed as clothing-optional — always confirm before visiting. Explore nearby springs with our GPS Springs Near Me Finder.
Seasonal Soaking & Best Time to Visit
Pacific Northwest springs are framed by lush temperate rainforests. Summer brings dry, sunny trail conditions, while autumn provides vibrant foliage and crisp soaking weather.
Fact Sheet & Geothermal Specifications
| Reported Soak Temp | 104°F |
| Source Temp (Historical) | 104°F |
| Trail Access | Recorded coordinates — access unverified |
| Access Fee | Paid / Resort Fees |
| Clothing Policy | Reported Clothing-Optional |
| Pet Policy | Reported No Pets |
| Geothermal Data Reference | NOAA Thermal Springs List (1980 archive) |
| Check Land Status | Oregon Land Manager (BLM) |
Verification & Sources
This record was verified against the following source(s):
Reviewed September 2026 · Treat all details as reported — verify before visiting · How we verify our data
Detailed Description
Oregon's most famous natural hot spring — four terraced rock pools (85-112°F) in an old-growth ravine on Rider Creek, Willamette National Forest, ~53 mi east of Eugene off the Aufderheide Scenic Byway. Reopened after the 2018 fire; bridge restoration completed with expanded parking and on-site hosts. Fee: $12/person per 2-hr session. Post-fire hazards persist — weakened trees, loose rock. Day use only; closed Thursday mornings. No alcohol.
Directions & Trailhead Access
From Blue River, FR-19 (Aufderheide) south ~7.5 mi to the signed trailhead; 0.25-mi trail to the pools.
Frequently Asked Questions: Terwilliger (Cougar) Hot Springs
Is Terwilliger (Cougar) Hot Springs free?+
Terwilliger (Cougar) Hot Springs is a developed thermal facility near Blue River that requires paid admission.
What temperature is Terwilliger (Cougar) Hot Springs?+
Terwilliger (Cougar) Hot Springs has a reported soak temperature of 104°F and a historical source temperature of 104°F in survey records. Historical data may not reflect current conditions — always test water before entering.
Is Terwilliger (Cougar) Hot Springs clothing optional?+
Terwilliger (Cougar) Hot Springs is listed as traditionally clothing-optional in directory records. Confirm current rules before visiting, as policies change.
How do you access Terwilliger (Cougar) Hot Springs?+
Terwilliger (Cougar) Hot Springs is a recorded location in Lane County. Exact access, parking, and land status are not verified — check with the local land manager (BLM/USFS/NPS) before visiting.
Where to Stay Near Terwilliger (Cougar) Hot Springs
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Community Soaker Reports
Visitor-submitted reports — not independently verifiedNo Community Reviews Yet
Have you soaked at Terwilliger (Cougar) Hot Springs? Share your water temperature measurements, pool conditions, and road access tips to help fellow travelers!