Pescadero Warm Spring
Pescadero Warm Spring surfaces at a mild 79 degrees Fahrenheit in Bear Lake County, Idaho, sitting right along Pescadero Road at 5,955 feet elevation. At just 41 meters from pavement, this is about as easy as thermal water access gets. The temperature hovers only 36 degrees above the local ambient average of 43 degrees Fahrenheit.
The spring occupies a quiet stretch of southeastern Idaho rangeland near the Bear River drainage. Surrounding hills roll with dry grass and scattered juniper, and the area receives over eight feet of snow annually, keeping winter visits brisk. At nearly 6,000 feet, summer days stay moderate while nights drop fast. The roadside setting means no bushwhacking, just pull over and walk a few dozen steps. Birdlife along the riparian corridor offers distraction while testing the water.
Located in the overthrust belt of southeastern Idaho, Pescadero Warm Spring rises along fault zones where deep groundwater picks up modest geothermal heat. The 79-degree temperature places it at the low end of thermal springs, likely reflecting shallower circulation or significant mixing with cold groundwater near the surface. Bear Lake County sits atop complexly folded Paleozoic sedimentary rocks thrust eastward during the Sevier orogeny.
Roadside access makes this a quick stop rather than a destination soak. Water temperature of 79 degrees Fahrenheit feels lukewarm in summer and cold-adjacent in winter. Emigration Campground is about 16 kilometers west along Highway 36 and takes reservations. No developed facilities exist at the spring itself. Best paired with other stops in the Bear Lake region.
Is Pescadero Warm Spring worth visiting?
Best for
- Easy day trips
- Overnight camping trips
Overview Emigration Campground is located in 17 miles west of Montpelier, Idaho, just off State Highway 36 in Emigration Canyon. Visitors enjoy exploring the nearby Highline Trail and fishing on local streams.Recreation The Highline National Recreation Trail is adjacent to the campground and is considered the premier trail of the Montpelier District. It is open to hikers, bikers, horseback riders, motorcyclists and off-road vehicle riders. The trail stretches 55 miles along the backbone of th...