Home to Yellowstone's Grand Prismatic Spring, the Midway Geyser Basin leaves visitors in awe of its rainbow-colored pools and powerful geyser. In addition to the Grand Prismatic Spring ...

The Midway Geyser Basin's Grand Prismatic Spring is the largest hot spring in Yellowstone and one of the largest hot springs in the world. Measuring approximately 370 feet in size and around 121 ...

Lightning strikes above the Fan and Mortar geysers in Yellowstone's Upper Geyser Basin. Geysers are formed when underground water meets superheated rock and blasts back out through a narrow hole.