USA - Yellowstone National Park - rbroskvar
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Mammoth Hot Springs

Steaming hot geothermal pool between the upper and lower loops of the Mammoth Hot Springs area in Yellowstone National Park

Mammothhot springspoolsteamgeothermalvolcanicnaturelandscapeoutdoorsnational parkYellowstoneWyomingUSAloopupperlowerboardwalktrail