SuperVolcano Under Yellowstone
Yellowstone National Park contains a caldera of a supervolcano that measures 35 X 45 miles. All kinds of geothermal activity can be seen here from steam vents, to hot springs, to geysers. It is caused by the movement of the North American Plate slowly sliding over a hot spot...very similar to Hawaii. Driving around Yellowstone and seeing the wildlife mix with the volcanic activity, it is no wonder that it was destined to become our first national park in 1872. The extreme temperature of water in the geysers and hot springs create a unique environment for colorful extremophiles, bacteria that survive and live in the scalding water. The bacteria can be quite colorful, making the springs very picturesque.Some pools were bright orange while other were a greenish blue, while some had just about every color you could imagine in a bright rainbow array of colors. Most of my best photos came from an area around the Grand Prismatic Spring. It is the largest hot ...