Hot Spring Near Arrigetch Peaks
Water temperature remains unknown, but this spring sits at 1,550 feet elevation within Gates of the Arctic National Park, 45 miles from the nearest road in one of Alaska's most remote mountain ranges.
The spring emerges from tundra valleys beneath the Brooks Range's jagged granite spires, where the landscape of high plateaus, deep gorges, and permanent snow patches has evolved little since the ice age.
Access requires backcountry expedition skills and multi-day travel from the nearest trailhead. Summer offers the only viable visiting window when snow melts and weather permits hiking.
Geological heat from the Earth's interior drives this thermal feature in a region where the last glaciation shaped the dramatic terrain less than 10,000 years ago. The spring sits on permanent federal protection.
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Hot Spring Near Arrigetch Peaks 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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