About Sulphur Spring
Sulphur Spring in Idaho offers a raw and authentic experience deep in Caribou County’s wooded landscape. This warm spring bubbles up naturally at around 150°F, creating a steamy retreat that feels untouched by modern development. The strong smell of sulfur mingles with crisp forest air, drawing you into a truly primitive soak amid nature.
Getting There
Access to Sulphur Spring requires some determination—it sits on private property surrounded by dense woods, so you need to respect the landowner’s rules and gain permission before visiting. There’s no formal parking lot, and reaching the spring involves navigating uneven trails, making sturdy footwear essential.
What to Expect
The spring itself forms a small pool filled with hot, mineral-rich water, steaming visibly on cooler days. The atmosphere is quiet and secluded, with sounds of forest life nearby but no built facilities or amenities. Because of its remote setting and private ownership, crowds are rare and the setting feels genuinely wild.
Tips for Visitors
Plan your visit in cooler months to enjoy the contrasting warmth of the water, but remember that 150°F is very hot—test the water carefully before full immersion. Bring water to stay hydrated and sturdy shoes for the rough trail. Always seek permission from the landowner and respect the natural environment to preserve this unique spot among Idaho hot springs and swimming holes.
