Quick FactsOverview
About Trail Creek Hot Springs
Trail Creek Hot Springs, Idaho is a free, primitive geothermal site in the Boise National Forest on Warm Lake Road, approximately 19 miles east of Cascade in Valley County, also known as Samuel's Hot Springs. Two volunteer-built soaking pools sit along Trail Creek among pine forest. The upper pool is approximately 8 by 12 feet and 2 feet deep, walled with rock and reinforced with cement, fed by a source at 125 degrees Fahrenheit. A PVC pipe diverts cold creek water into the pool, letting visitors adjust temperature to around 100 to 110 degrees. The lower pool is rock and sand lined and runs cooler depending on creek level.
A small dirt pullout near milepost 60.6 on Warm Lake Road is the access point, with a steep 0.1-mile path descending to the pools. The springs are not visible from the road. Warm Lake Road is paved and open most of the year, making Trail Creek one of the more accessible primitive springs in the Cascade area. The site is popular in winter when steam rises against snow-covered canyon walls.
For those seeking family hot springs near Cascade Idaho without a long approach, Trail Creek provides a free, year-round option in the Boise National Forest that is accessible from a paved forest road.
Location & Access
Getting to Trail Creek Hot Springs
Trail Creek Hot Springs is near milepost 60.6 on NF-22/Warm Lake Road, approximately 19 miles east of Cascade. From Cascade, take Highway 55 north a short distance to the Warm Lake Road turnoff and head east for 19 miles. Watch for a small dirt pullout on the left (north) side of the road. There is no signage. Save the coordinates 44.6236501, -115.8019843 to an offline map before departure as cell service is limited on Warm Lake Road. If you reach a Yellow Pine road sign, you have gone too far.
From Boise the drive is approximately two hours via Highway 55 north to Cascade, then east on Warm Lake Road. From McCall the drive is approximately one hour south to Cascade. The road is paved and suitable for any standard vehicle in dry conditions. No high-clearance vehicle is needed.
For those seeking hot springs near Cascade Idaho along the Warm Lake corridor, Trail Creek is one of several primitive springs accessible from this road. Gold Fork Hot Springs near Donnelly is a developed paid option to the north.
The site is open year-round. Warm Lake Road typically remains passable through winter, though the steep path to the pools requires traction devices when icy. Microspikes are strongly recommended for winter visits.
Suitability & Accessibility
Who Can Visit Trail Creek Hot Springs
Trail Creek Hot Springs suits families with children, day visitors, and anyone comfortable with a very short but steep descent on packed earth to reach the pools. The lower pool runs at a cooler temperature and suits most visitors in appropriate footwear. The upper pool at 100 to 110 degrees requires careful temperature testing, and the PVC cold water pipe allows adjustment to a comfortable soaking range.
Clothing optional norms apply at Trail Creek, consistent with most primitive sites in the Boise National Forest. The site receives steady traffic and visitors will generally encounter others. Bringing swimwear is a practical choice if you prefer it, particularly on busier weekends.
For those seeking family hot springs near Cascade Idaho with free access from a paved forest road, Trail Creek is one of the most reachable primitive options in the Warm Lake area without requiring a significant hike. The year-round road access is a practical advantage over higher-elevation springs that close seasonally.
The site is not wheelchair accessible. The 0.1-mile path is a steep packed-earth descent requiring sure footing on both the way down and the return uphill climb. In winter the path is heavily compacted and acts as a slide, making traction devices essential. No facilities exist at the site: no toilets, no trash receptacles, and no changing areas. All waste must be packed out.
Safety & Etiquette
Safety at Trail Creek Hot Springs
Trail Creek Hot Springs requires visitors to be mindful of the steep access path, variable water temperatures, and seasonal trail conditions. The path from the pullout to the pools is steep packed earth that becomes muddy after rain and icy in winter. Footwear with grip is essential for all visits. In winter the path is compacted by heavy use and acts as a slide; microspikes or crampons are strongly recommended and should be considered mandatory for winter visits. Falls on the descent and ascent are the most common hazard.
The geothermal source runs at 125 degrees Fahrenheit, well above safe soaking temperature. Always test the upper pool water before entering, particularly away from the direct inflow. The PVC pipe allows cold water addition, but the valve must be actively managed. Do not enter any pool without first confirming temperature away from the inflow. The lower pool is cooler but should also be tested, as creek levels affect its temperature.
Trail Creek runs alongside the pools and can be cold and fast during spring runoff. Keep children supervised near the creek bank and away from the channel during high water. The dirt pullout is immediately adjacent to Warm Lake Road; supervise children and leash dogs in the parking area at all times.
Cell service is absent along most of Warm Lake Road. Download offline maps and carry basic emergency supplies. Inform someone of your itinerary and expected return before heading out. Emergency services are based in Cascade, approximately 19 miles west. Leave No Trace principles apply: pack out all waste and leave the site as found.
