Unnamed Thermal Spring
This 70°F spring emerges at 4,677 feet elevation in Humboldt County, requiring a 1.8-kilometer hike to reach the source where water flows 17.7 degrees above the 52.3-degree ambient temperature on BLM Humboldt River Field Office land southwest of Winnemucca.
The spring sits in high desert terrain receiving 8.8 inches of precipitation and 18.1 inches of snowfall annually, accessible only by hiking across open federal rangeland designated for multiple use including grazing and mineral development. The landscape consists of sagebrush-covered slopes typical of Basin and Range topography, with the spring emerging in terrain offering views of surrounding mountain ranges across broad valleys.
No documented name or historical record exists for this spring in available sources. The remote location requiring substantial hiking effort suggests it has remained undeveloped and largely unvisited except during government surveys cataloging regional geothermal features.
The 1.1-mile hike crosses unshaded BLM land with no established trail. Carry adequate water and sun protection. The modest temperature suggests this may be suitable for bathing unlike hotter regional springs. Spring and fall offer the best visiting conditions given elevation and exposure. Verify current land use with the Humboldt River Field Office before attempting access.