Okpilak Springs
Okpilak Springs reach 119 degrees Fahrenheit (48.5°C) within Alaska's Arctic National Wildlife Refuge at 2,550 feet elevation, protected in perpetuity under the strictest conservation status. These thermally active springs represent one of Arctic Alaska's most pristine geothermal systems with restricted public access.
The Arctic's northernmost landscapes surround Okpilak Springs in tundra-dominated terrain above the Arctic Circle. At 2,550 feet elevation, winters average 21 degrees Fahrenheit with nearly 60 inches of snow annually, creating an extreme environment where thermal activity provides visible warmth against arctic conditions.
Visiting requires advance USFWS permit and exceptional expedition planning resources. Located 75 kilometers from the nearest tractor trail, access proves possible only during brief summer months via plane-supported expedition or multi-week backpacking expeditions. This location remains suitable only for elite wilderness travelers.
These springs occupy the Arctic National Wildlife Refuge, established through federal protection to preserve wilderness values and wildlife habitat. The restricted access maintains the springs in a natural state for conservation purposes, protecting this geothermal system from intensive human use while recognizing its ecological significance.
The water at Okpilak Springs contains 423 mg/L total dissolved solids. It is notably rich in sulfate (traditionally used for skin conditions and inflammation).
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Okpilak Springs requires a hike to reach, so pack light but prepared. Cold air temperatures make a changing robe or warm layers essential.
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