Mark Willocks Photography

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Yellowstone National Park

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  • Hayden Valley Dawn I

    Hayden Valley Dawn I

    Just after sunrise an overnight rainstorm had just ended and the clouds had begun to break up.

    Yellowstone National ParkHayden ValleyWyomingwaterreflectionscloudsgreen

  • Hayden Valley Dawn II

    Hayden Valley Dawn II

    Just after sunrise an overnight rainstorm had just ended and the clouds had begun to break up.

    Yellowstone National ParkHayden ValleyWyomingwaterreflectionscloudsgreen

  • Lodgepole Pine Silhouette

    Lodgepole Pine Silhouette

    After sunset glowing thunderheads are viewed across Yellowstone Lake through the silhouette of a lodgepole pine tree.

  • Only the Bottom

    Only the Bottom

    The Yellowstone River crashes several hundred feet down into the canyon raising quite a stir of mist.

    Yellowstone NPYellowstone RiverLower Fallsrivercanyonwaterfallmist

  • Grand Prismatic Spring from Above

    Grand Prismatic Spring from Above

    Grand Prismatic Spring is one of the largest hot springs in the world ... and surely one of the most beautiful. Its full beauty can best be taken in from atop the nearby hills.

    Yellowstone NPGrand Prismatic Springcolorfulhot springorangeMiddle Geyser Basin

  • Grand Prismatic Spring is one of the largest hot springs in the world ... and surely one of the most beautiful.  Its full beauty can best be taken in from atop the nearby hills.

    Grand Prismatic Spring is one of the largest hot springs in the world ... and surely one of the most beautiful. Its full beauty can best be taken in from atop the nearby hills.

  • Steam and Bacteria

    Steam and Bacteria

    Grand Prismatic Spring produces some of the most vividly colored bacterial mats in its outflow streams of any of the springs in Yellowstone.

    Yellowstone National ParkGrand Prismatic Springhot springoutflowbacterial mat

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    Yellowstone

  • Terraces and Stumps

    Terraces and Stumps

    Yellowstone

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    Yellowstone

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    Yellowstone

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  • Orange Spring Waterfall

    Orange Spring Waterfall

    At Mammoth Springs in Yellowstone NP.
    The points at which the hot water gushes out on this mound change frequently. And where the hot water flows, the calcite is laid down and the orange bacteria thrive.

    Yellowstone NPbacteriaOrange Spring Mound

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  • The Yellowstone River in the Hayden Valley

    The Yellowstone River in the Hayden Valley

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