| Caption: |
U.S.A., Wyoming, Yellowstone National Park: warm springs at Grant Village on the shores of the Yellowstone Lake. Differerent types and colours of algae growing in the hot water run-off from the springs. The different colours indicate different water temperatures. Dead Lodgepole Pine trunks act as "wicks", and soak up minerals until they become petrified. |
| Keywords: |
spectacular, geology, ecology, fissure, nature, picturesque, scenic, photogenic, heritage, UNESCO, geothermal, volcanism, geyser, hot springs |
