Emerald Pool, Black Sand Geyser Basin, Yellowstone National Park

Selected for Google Maps and Google Earth

The unusual colors is the result of lower temperatures which have allowed yellow bacteria and algae to grow on the lining of the pool. The clear water of the pool reflects the blues but absorbs the other hues of the color spectrum. The combination of blue and yellow then produces green. Objects thrown into the pool and natural debris have caused a further decrease in temperature, resulting in a change of bacteria and algae growth and thus a change of color. The edge of the pool is now orange and brown. If the temperature continues to decrease, the pool may lose its emerald color.

Show more
Show less
Save Cancel Want to use bold, italic, links?

Comments (27)

« Previous12Next »
Lipika Dasgupta on January 30, 2011

Lovely colours. like. Best, Lipika

Maria Gizella Nemcsi… on April 18, 2011

Thank you Lipika Dasgupta for your visit. Regards, Maria

c. bayernengel on December 28, 2011

einzigartig schön, like Ich wünsche dir und deiner Familie einen Guten Rutsch ins Neue Jahr 2012. Ein kleiner Blumenstrauß für dich ! Liebe Grüße sendet bayernengel aus Deutschland!

arno18 on February 16, 2012

Impressive nice picture, great colours! LIKE Best wishes, Arno

Angelo Rosanio on April 28, 2013

Very nice, about colors in your shot, look at my tag: yellow and blue...

franco benf on June 22, 2014

Hello Maria Gizella Nemcsi…

Even in the United States there are wonderful colors. Thanks for Participating in the VMC June.

a cordial greeting franco

HTS_1988 on July 22, 2014

Linda foto !! Like

« Previous12Next »

Sign up to comment. Sign in if you already did it.

Photo details

  • Uploaded on December 18, 2009
  • © All Rights Reserved
    by Maria Gizella Nemcsi…
    • Camera: Konica Konica Digital Camera KD-510Z
    • Taken on 2005/09/01 12:04:41
    • Exposure: 0.004s (1/250)
    • Focal Length: 8.00mm
    • F/Stop: f/4.700
    • ISO Speed: ISO100
    • Exposure Bias: 0.00 EV
    • No flash