Wilderness Landscape & Natural Heritage
Midway Geyser Basin, a smaller yet significant geothermal area in Yellowstone National Park, attracts visitors with its impressive natural wonders. Situated between the Upper and Lower Geyser Basins, it is most famous for the Grand Prismatic Spring, the largest hot spring in the United States, boasting a striking spectrum of colors formed by microbial mats. The Excelsior Geyser Crater, another key feature, was once a powerful geyser and now releases approximately 4,000 gallons of boiling water per minute into the Firehole River. This area features a well-maintained boardwalk trail that offers close-up views of these geothermal phenomena and highlights the unique ecology supported by the basin's extreme conditions. As part of a park with established protections since 1872, it provides fascinating insights into geothermal dynamics and the broader volcanic landscape of Yellowstone. Midway Geyser Basin invites photography enthusiasts, scientists, and tourists alike to experience the raw and vivid power of geothermal activity.