Fumaroles
Fumaroles reaches 204°F on BLM land in Pershing County at 3,639 feet elevation, erupting 145.2°F above ambient temperature in one of Nevada's most intensely geothermal districts. Managed by the Stillwater Field Office as open public land subject to extractive use, the feature sits 185 meters from the nearest road requiring a short walk. The extreme temperature and steam emissions characterize this as an active geothermal vent rather than a soaking spring.
The fumaroles emerge in the Great Basin's high desert where sagebrush-covered basin floors meet barren geothermal terrain stripped of vegetation by heat and acidic conditions. At 3,639 feet elevation, annual air temperatures average 58.8°F with 8.5 inches of precipitation and 13 inches of winter snow. The surrounding landscape shows evidence of geothermal exploration and development, with well pads, roads, and monitoring equipment visible across terrain where subsurface heat creates surface manifestations including hot springs, fumaroles, and altered ground. The area lies within the Dixie Valley geothermal system, part of the broader Battle Mountain Heat Flow High where elevated crustal temperatures support commercial power generation.
Geothermal features in this district have attracted scientific interest since early 1900s surveys documented the region's exceptional heat flow. Commercial geothermal development began in the 1980s with exploratory drilling and expanded through subsequent decades as the Dixie Valley power plant came online. The BLM manages surface access while maintaining jurisdiction over federal mineral estate, allowing geothermal leasing under multiple-use mandates. "Fumaroles" is a descriptive term for steam vents rather than a formal place name, indicating this feature's classification as a geothermal discharge point within a broader thermal field.
Approach with extreme caution; 204°F water and steam can cause severe burns. Do not attempt to touch water or approach active vents. The short walk crosses open desert terrain accessible year-round, though summer heat intensifies already-extreme thermal conditions. Spring and fall provide moderate temperatures for safe observation from a distance. Winter offers coolest conditions but may bring mud following storms. Bring sun protection, water, and sturdy footwear for rough volcanic terrain. The area's industrial character and active geothermal development detract from wilderness experience but provide insight into Nevada's geothermal energy resources.
Is Fumaroles worth visiting?
Best for
- Viewing dramatic geothermal features
Not ideal for
- Swimming or soaking