Siri Ranch Spring
Siri Ranch Spring flows at 95°F just 80 meters from the nearest road in Eureka County at 5,810 feet elevation. Water runs 46.2°F above ambient air near Nevada's historic mining town of Eureka. The roadside location provides easy access to this warm thermal feature in the central Great Basin's rugged mountain-and-valley terrain.
The spring emerges at the interface between valley floor and mountain slope, occupying terrain characterized by sagebrush-covered flats transitioning to pinyon-juniper woodland at higher elevations. At 5,810 feet, the site receives 10.5 inches annual precipitation and 38.5 inches of snow, typical of mid-elevation Great Basin locations. The surrounding landscape shows evidence of historic ranching use, with the spring likely serving livestock operations. Average annual air temperatures of 48.8°F reflect the cold winters and moderate summers of Nevada's interior mountains.
Visit May through October when unpaved roads are most reliable and temperatures moderate. High-clearance vehicles are recommended for accessing remote Eureka County locations. The roadside location makes this spring among the more accessible in the area, requiring minimal walking. Combine with exploration of Eureka's exceptionally preserved downtown, featuring Nevada's oldest continuously operating courthouse and numerous Victorian-era buildings. Multiple other thermal springs in the district offer opportunities for extended touring of central Nevada's geothermal resources.
The "Siri Ranch" name references a ranching operation that developed water sources in the area. Eureka's mining boom began in 1864 with major silver-lead production through the early 1900s. Ranching supported the mining economy and continued as the primary land use after ore bodies declined. Documentation of this specific spring's development is limited, but ranch-named springs typically indicate improvements made for livestock watering. The spring remains associated with grazing operations.
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Siri Ranch Spring sits at 5,810 feet above sea level, way above the mile-high mark. You may not feel the altitude strongly, but hot water still dehydrates you faster at elevation. UV is about 23% stronger than at sea level, so bring sunscreen and drink more water than you normally would.
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Siri Ranch Spring is road-accessible, so you can bring more gear.
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