
The largest hot spring in the United States, famous for its vivid rainbow colors caused by pigmented bacteria. Photographers flock here for the surreal textures of the microbial mats and the deep turquoise center contrasted against rising steam.

The largest hot spring in the United States, famous for its vivid rainbow colors caused by pigmented bacteria. Photographers flock here for the surreal textures of the microbial mats and the deep turquoise center contrasted against rising steam.