Visit Serpentine Hot Springs, Bering Land Bridge National Preserve, Alaska

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Serpentine Hot Springs consists of two thermal areas (Serpentine Hot Springs proper and Arctic Hot Springs) located on Hot Springs Creek. The waters of Serpentine and Arctic Hot Springs are likely fed by the same source because they have virtually identical chemical compositions and similar maximum subsurface temperatures of 127+/-3°C (260+/-5.4°F). Based on hydrogen and oxygen isotopes, the thermal waters are primarily meteoric (derived from precipitation) in origin. The thermal waters also contain a saline component, interpreted to be a product of bedrock leaching or a ~7% seawater component. The preserve is vast and access is limited to Serpentine Hot Springs; there are no roads that lead into it. Serpentine can be accessed by small airplane, foot, bike or snowmobile.

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