From Close Up or Far Away, Amazing Volcano Photos
Geologist Bernhard Edmaier has been photographing the majestic beauty of active and dormant volcanoes for over 15 years
- By Abby Callard
- Smithsonian.com, December 02, 2009
Yellowstone National Park, Wyoming, USA
Bacteria produce the vivid colors in the Grand Prismatic Spring. Heat-loving bacteria that hold various pigments gather around the edge and turn it orange and brown. The colors can be even more intense in reality than on the print, Edmaier says. The water in the spring is 175 degrees Fahrenheit.