Agency status field: open (read 2026-10-15). Conditions change: check the status page before you go.
The details that matter
- Fee
- Paid
- Season
- Year round, but forest service rd 19 is not maintained for snow and ice in the winter
- Clothing policy
- Not recorded yet Know this? Tell us with an official link.
- Status
- Open
- Hours
- sunrise-sunsetPer OpenStreetMap. Hours change, so check before you go.
Sources
Last updated 2026-10-15
From the source
fs.usda.gov · 2026-10-15
- Status
- “…Agency status field: open”
- Fee
- “…Pass - $12 per person, per 2 hours (ages 12 and older) Fee area includes hot springs, trail, lagoon, and parking lot. On site payment option.”
- Season
- “…Year Round, but Forest Service Rd 19 is not maintained for snow and ice in the winter”
- Hours
- “…Day use only. Closed sundown to sunrise (strictly enforced). Closed Thursdays from 8 a.m. - 12 noon for cleaning. ”
- Rules
- “…No alcohol No visible nudity is allowed from Aufderheide Scenic Byway (Forest Road 19) Day use only Camping is restricted to developed campgrounds in the Cougar Recreation Area No pets are allowed at the site/hot springs. Service animals are still allowed and must be leashed and under control at all...”
- Water temperature
- “…Temperatures range from 85 degrees Fahrenheit in the lower pool to 112 degrees Fahrenheit in the upper pool.”
Agency description
As you walk the 1/4 mile trail to this clothing optional hot springs, you are enveloped in the dark hues of primeval woodland, touched by mottled light filtering down from treetops high above and the invigorating scene of the lagoon with the gorgeous Rider Creek waterfall spilling into it. There are four soaking pools spaced apart by rock walls laid out in steps down a ravine. Temperatures range from 85 degrees Fahrenheit in the lower pool to 112 degrees Fahrenheit in the upper pool. The pools are 3-12 feet across and an average of 2-3 feet deep. The pool floors are mostly bedrock b
fs.usda.gov · 2026-10-15
- Status
- “…Agency status field: none”
- Fee
- “…Pass - $10 per person, per 2 hours. Fee area includes hot springs, trail, lagoon, and parking lot. On site payment option.”
- Season
- “…Year Round, but Forest Service Rd 19 is not maintained for snow and ice in the winter”
- Hours
- “…Terwilliger Hot Springs is for day use only. Closed sundown to sunrise (strictly enforced). The hot springs are closed Thursdays from 8 a.m. - 12 noon for cleaning. ”
- Rules
- “…No alcohol No visible nudity is allowed from Aufderheide Scenic Byway (Forest Road 19) Day use only No pets are allowed at the site/hot springs. Service animals are still allowed and must be leashed and under control at all times. At no time should pets be in the pools. Camping is restricted to developed...”
Agency description
This trailhead provides access to: Rider Creek Trail #3319 Terwilliger (Cougar) Hot Springs See trail pages for more information.
fs.usda.gov · 2026-10-15
- Status
- “…Agency status field: open”
- Fee
- “…Pass - $12 per person, per 2 hours (ages 12 and older) Fee area includes hot springs, trail, lagoon, and parking lot. On site payment option.”
- Season
- “…Year Round, but Forest Service Rd 19 is not maintained for snow and ice in the winter”
- Hours
- “…Day use only. Closed sundown to sunrise (strictly enforced). Closed Thursdays from 8 a.m. - 12 noon for cleaning. ”
- Rules
- “…No alcohol No visible nudity is allowed from Aufderheide Scenic Byway (Forest Road 19) Day use only Camping is restricted to developed campgrounds in the Cougar Recreation Area No pets are allowed at the site/hot springs. Service animals are still allowed and must be leashed and under control at all...”
- Water temperature
- “…Temperatures range from 85 degrees Fahrenheit in the lower pool to 112 degrees Fahrenheit in the upper pool.”
Agency description
As you walk the 1/4 mile trail to this clothing optional hot springs, you are enveloped in the dark hues of primeval woodland, touched by mottled light filtering down from treetops high above and the invigorating scene of the lagoon with the gorgeous Rider Creek waterfall spilling into it. There are four soaking pools spaced apart by rock walls laid out in steps down a ravine. Temperatures range from 85 degrees Fahrenheit in the lower pool to 112 degrees Fahrenheit in the upper pool. The pools are 3-12 feet across and an average of 2-3 feet deep. The pool floors are mostly bedrock b
fs.usda.gov · 2026-10-15
- Status
- “…Agency status field: none”
- Fee
- “…Pass - $10 per person, per 2 hours. Fee area includes hot springs, trail, lagoon, and parking lot. On site payment option.”
- Season
- “…Year Round, but Forest Service Rd 19 is not maintained for snow and ice in the winter”
- Hours
- “…Terwilliger Hot Springs is for day use only. Closed sundown to sunrise (strictly enforced). The hot springs are closed Thursdays from 8 a.m. - 12 noon for cleaning. ”
- Rules
- “…No alcohol No visible nudity is allowed from Aufderheide Scenic Byway (Forest Road 19) Day use only No pets are allowed at the site/hot springs. Service animals are still allowed and must be leashed and under control at all times. At no time should pets be in the pools. Camping is restricted to developed...”
Agency description
This trailhead provides access to: Rider Creek Trail #3319 Terwilliger (Cougar) Hot Springs See trail pages for more information.
Quoted word for word from the linked page on the date shown. Pages change; the source wins.
Location 44.083289, -122.238724. Source: OpenStreetMap, 2026-10-15 · Wikidata Q5176028 · Location matches “Cougar Reservoir Hot Springs” in NOAA's 1980 thermal springs list (0.5 km). Map data © OpenStreetMap contributors.
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