Bog Hot Springs
Bog Hot Springs discharges at 131°F in the remote Bog Hot Valley of Humboldt County, nearly 79 degrees above the local air temperature. Known to locals simply as Bog Hot, the spring sits at 4,280 feet elevation just 78 feet from the road. USGS chemistry reveals strikingly low calcium and magnesium—0.14 mg/L and 0.02 mg/L respectively—indicating deep-source sodium-dominant water.
The spring emerges in a broad, flat valley in northwestern Nevada near the Oregon border, where alkali meadows and marshy ground surround the thermal outflow. At 4,280 feet, Bog Hot Valley is flanked by low desert ranges and receives 10.2 inches of annual precipitation with 25 inches of snow. Vegetation is sparse—saltgrass, rushes near the spring, and sagebrush on drier ground. The nearest town, Winnemucca, lies a long drive to the southeast along Interstate 80. The area is exceedingly remote, with few structures or residents.
The source is dangerously hot at 131°F—soak only in downstream channels where the water has cooled. Test temperature carefully before entering. Roads to Bog Hot Valley are unpaved and can be muddy or snow-covered from November through April; high-clearance vehicles are recommended year-round. Bring all supplies including water, fuel, and food. No cell service is available. Summer evenings and fall weekends are the most popular soaking times.
Bog Hot Springs appears on maps dating to the late 1800s and has been used informally by ranchers, hunters, and travelers for decades. Locals have constructed rudimentary soaking pools downstream from the scalding source, where water cools to comfortable temperatures. The surrounding valley has supported cattle ranching since the homestead era. No commercial development has occurred at the spring, and it remains a free, undeveloped soaking destination.
The water at Bog Hot Springs is alkaline (pH 9.0) with 293 mg/L total dissolved solids.
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Bog Hot Springs is road-accessible, so you can bring more gear. The water runs hot, so extra hydration is key.
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