Unnamed Thermal Spring
A 108°F hot spring in Malheur National Wildlife Refuge at 4,091 feet elevation, running 58 degrees above the 50°F ambient air temperature. The spring sits 3,330 feet from South Harney Lake Lane, requiring a short walk across restricted refuge lands managed by US Fish and Wildlife Service. Public access is limited under refuge regulations designed to protect sensitive wetland habitat.
The spring emerges within the Harney Basin's extensive wetland system, surrounded by alkali meadows, seasonal ponds, and sagebrush uplands characteristic of the northern Great Basin. At 4,091 feet elevation, the site receives 12.1 inches of annual precipitation and 24.1 inches of snow. The thermal feature creates localized microhabitats that support wildlife through harsh desert winters when most water sources freeze. Surrounding landscape consists of protected federal lands managed for migratory bird conservation.
Contact Malheur NWR headquarters for current access restrictions before visiting. The refuge closes certain areas seasonally to protect nesting birds, particularly March through July. Winter temperatures can be extreme despite the moderating effect of thermal features. The 1,000-plus-foot walk from the road crosses uneven terrain. Bring appropriate desert hiking gear, water, and be prepared for sudden weather changes at this elevation. Bathing is not permitted in refuge thermal springs.
The refuge was established in 1908 as one of the earliest national wildlife refuges in the United States, protecting crucial stopover habitat on the Pacific Flyway. The area's thermal springs have sustained wildlife populations for thousands of years, with Indigenous peoples utilizing the Harney Basin's resources long before Euro-American settlement. Current management under US Fish and Wildlife Service maintains protection status 2, ensuring permanent conservation while allowing limited wildlife-dependent uses.
Some links are affiliate links. We may earn a commission at no extra cost to you.
this spring is road-accessible, so you can bring more gear.
As an Amazon Associate, we earn from qualifying purchases.