Grand Prismatic Spring: what actually happened.

The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the Yellowstone National Park, and the third largest in the world, after Frying Pan Lake in New Zealand and Boiling Lake in Dominica.

The Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in the Yellowstone National Park, and the third largest in the world, after Frying Pan Lake in New Zealand and Boiling Lake in Dominica. It is located in the Midway Geyser Basin.