Quick FactsOverview
About Jerry Johnson Hot Springs
Jerry Johnson Hot Springs, Idaho is a free, undeveloped geothermal spring in the Nez Perce-Clearwater National Forest in Idaho County, situated along Warm Springs Creek off US Highway 12. Three distinct hot spring sources feed a series of rock-walled soaking pools in a cedar and fir forest at approximately 3,200 feet elevation. The pools have rock walls, sandy clear bottoms, and temperatures ranging from around 95 to 115 degrees Fahrenheit near the source. Access is free and the site is managed for day use only, with hours from 6am to 8pm.
The site is one of Idaho's most visited natural hot springs. The trail follows Warm Springs Creek through old-growth cedar and fir, and is relatively flat and well maintained. The first source, the waterfall pools, is submerged during spring runoff and becomes accessible later in summer. The other two sources feed pools available for soaking year-round.
For those seeking free hot springs Idaho offers in a forested setting without a long or difficult hike, Jerry Johnson is one of the most accessible options in northern Idaho. The Highway 12 corridor along the Lochsa River is one of Idaho's most scenic driving routes and was historically used by the Nez Perce people and traversed by the Lewis and Clark Expedition.
Location & Access
Getting to Jerry Johnson Hot Springs
Jerry Johnson Hot Springs is reached from the Warm Springs Pack Bridge trailhead on the north side of US Highway 12, between mile markers 152 and 153, approximately 78 miles east of Kooskia and 25 miles west of Lolo Pass. The trailhead has a large unpaved parking lot and a vault toilet. No parking fee is charged. Cross Highway 12 on foot, cross the suspension bridge over the Lochsa River, and follow Warm Springs Creek approximately 1.4 miles to the springs on a well-marked, mostly flat trail.
Highway 12, the Northwest Passage Scenic Byway, is paved and accessible year-round, though winter conditions can include ice and snow. Checking Idaho road reports before departure is strongly recommended from late fall through early spring. Cell service is absent along most of this stretch of Highway 12. Download offline maps before leaving the last town with reliable service.
From Missoula, Montana, the drive west on Highway 12 takes approximately one hour and 20 minutes. From Lewiston, Idaho, the drive east takes roughly two hours. For those seeking hot springs near Kooskia Idaho along the Lewis and Clark Highway corridor, this is the most well-known destination in the area.
The parking area fills quickly on summer weekends. Arriving early in the morning on weekdays significantly improves the chance of finding a spot and having the pools with fewer visitors. No cell service is available at the trailhead or along the trail.
Suitability & Accessibility
Who Can Visit Jerry Johnson Hot Springs
Jerry Johnson Hot Springs suits fit adults and older teenagers who are comfortable with a 1.4-mile one-way hike on an unimproved forest trail and a strict day-use schedule. The trail is not technically difficult for experienced hikers, but it is not suitable for young children, visitors with mobility limitations, or anyone who cannot complete the round trip and return by the 8pm closure. No facilities exist beyond a vault toilet at the parking area.
The site is clothing optional, which is standard at undeveloped Forest Service hot springs in Idaho. Swimwear is common given the high volume of visitors, but nudity is not prohibited. Visitors should be comfortable with this norm before arriving, as the pools are frequently shared by multiple groups simultaneously.
For those seeking free hot springs Idaho offers in a historic wilderness corridor, Jerry Johnson provides a distinctive experience combining geothermal soaking with genuine forest immersion. Weir Creek Hot Springs, another undeveloped site, is located along the same highway and is a practical second stop for visitors making a day trip.
Dogs are welcome on the trail but must be kept on a leash through the initial section and kept out of the soaking pools. The trail becomes icy in winter and traction devices are strongly recommended for cold-weather visits.
Safety & Etiquette
Safety at Jerry Johnson Hot Springs
Jerry Johnson Hot Springs requires visitors to be mindful of conditions, as the site has no facilities at the pools, enforces strict day-use hours, and the pools nearest the source run up to 115 degrees Fahrenheit. Plan to leave the pools with enough time to complete the 1.4-mile return hike and cross Highway 12 before the 8pm cutoff, particularly in fall and winter when daylight ends earlier. Violations of the nighttime closure carry significant fines.
Move gradually toward hotter pools rather than entering the hottest areas first, and exit immediately if you feel overheated or lightheaded. The waterfall pools are among the hottest and require particular care. Water temperature varies by season, with higher creek levels in spring cooling the pools and lower levels in late summer producing hotter conditions.
Highway 12 must be crossed on foot at the trailhead. The highway carries commercial traffic at speed. Cross only at designated points, look carefully in both directions, and ensure all members of your group are accounted for before crossing. The suspension bridge over the Lochsa River sways with foot traffic. Do not run on the bridge and hold the handrails.
No cell service is available at the site or along most of Highway 12 in this area. Download offline maps and share your itinerary before departing. Emergency services are based in Kooskia, approximately 78 miles west, or Lolo, Montana, approximately 25 miles east. Leave No Trace principles are essential here. The continued free access to this site depends directly on visitors treating the area responsibly.
