• Steam rises off of the colorful Mammoth Hot Springs Terraces. Photo courtesy Jacob W. Frank

    Yellowstone

    National Park ID,MT,WY

Porcelain Basin

Porcelain Basin looking west to Mt. Holmes
 

Parts of the whitish rock-sheet before you pulsate from the pressure of steam and boiling water beneath them. A number of geysers and other features here have been born suddenly in small hydrothermal explosions. Some features are ephemeral, their activity lasting a few hours, days, or weeks. A few others have become relatively permanent fixtures in the scene.


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