Unnamed Thermal Spring
Near Vale in Malheur County, this spring emerges at 2,504 feet with scalding 158°F water (69.5°C per USGS measurements), creating a 103.3°F temperature differential above the 54.7°F ambient air. Located 260 meters from the nearest road, the spring requires just a short walk to access one of eastern Oregon's hotter thermal features.
The spring sits in the drainage of the Malheur River valley, where basalt flows and sedimentary formations create gently sloping terrain transitioning from valley floor to uplands. At this low elevation, vegetation consists primarily of sagebrush, rabbitbrush, and annual grasses adapted to the arid climate of 9.4 inches annual precipitation and 15.3 inches of snow. The surrounding landscape shows evidence of agricultural use, with irrigated fields contrasting sharply with the natural desert scrubland on non-irrigated benchlands.
Documentation for this unnamed spring remains limited to the 1980 NOAA survey. The proximity to Vale—a town established in 1883 along the Oregon Trail route—suggests possible awareness by early settlers, though no development records survive. The Malheur River valley saw intensive homesteading and irrigation development from the 1880s onward, but this spring appears to have remained undeveloped.
The extreme 158°F temperature prohibits soaking without significant cooling infrastructure. Visit spring through fall; winter snow can impede access. Bring heat-resistant containers and thermometer if studying thermal characteristics. The short walk from road makes this accessible for scientific observation. Nearby Vale provides services; dispersed camping exists on BLM lands in the surrounding area. Respect property boundaries in this mixed ownership landscape.
Is this spring worth visiting?
Best for
- Observing powerful hot springs
Not ideal for
- Casual soaking