The Buffalo Soldiers of the 25th Infantry Regiment Bicycle Corps ride on an inactive portion of Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park. Photo by F. Jay Haynes, 1896. Montana Historical Society Research Center, Haynes Foundation Photograph Collection, H-3616. Used with permission from the Montana Historical Society.
Images
![The Buffalo Soldiers of the 25th Infantry Regiment Bicycle Corps ride on an inactive portion of Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/H-03616%20copy.jpg?itok=4JrV5QjW)
The Buffalo Soldiers of the 25th Infantry Regiment Bicycle Corps ride on an inactive portion of Minerva Terrace, Mammoth Hot Springs, Yellowstone National Park. Photo by F. Jay Haynes, 1896. Montana Historical Society Research Center, Haynes Foundation Photograph Collection, H-3616. Used with permission from the Montana Historical Society.
![Sapphire Pool in Biscuit Basin, Yellowstone National Park, in 1887](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/biscuits.jpg?itok=zOgs6Z6f)
Sapphire Pool in Biscuit Basin, Yellowstone National Park, photographed by Frank Jay Haynes in about 1887. Bulbous-shaped geyserite knobs surrounding the pool reminded the photographer of biscuits. Haynes was the official Yellowstone National Park photographer at the time.
Sapphire Pool in Biscuit Basin, Yellowstone National Park, photographed by Frank Jay Haynes in about 1887. Bulbous-shaped geyserite knobs surrounding the pool reminded the photographer of biscuits. Haynes was the official Yellowstone National Park photographer at the time.
![Geological map of Yellowstone National Park based on work by William Henry Holmes in 1878.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/1878%20map.jpg?itok=chLBqMOz)
Geological map of Yellowstone National Park based on work by William Henry Holmes in 1878 as part of Ferdinand Vandeveer Hayden’s United States Geological and Geographical Survey of the Territories, with topography mapped by Henry Gannett and triangulation by Allen David Wilson. From the Twelfth Annual Re
Geological map of Yellowstone National Park based on work by William Henry Holmes in 1878 as part of Ferdinand Vandeveer Hayden’s United States Geological and Geographical Survey of the Territories, with topography mapped by Henry Gannett and triangulation by Allen David Wilson. From the Twelfth Annual Re
![Hinmatóowyalahtq̓it (Chief Joseph) of the Nez Perce in 1877](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Chief_Joseph-1877.jpg?itok=jnp9sYxg)
Photo of Hinmatóowyalahtq̓it (Chief Joseph) taken in November 1877 by O.S. Goff in Bismarck. From Wikipedia (https://commons.wikimedia.org/wiki/File:Chief_Joseph-1877.jpg).
Photo of Hinmatóowyalahtq̓it (Chief Joseph) taken in November 1877 by O.S. Goff in Bismarck. From Wikipedia (https://commons.wikimedia.org/wiki/File:Chief_Joseph-1877.jpg).
![Painting of the Grand Canyon of the Yellowstone by artist Thomas Moran](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Moran%20Yellowstone%20Falls.jpg?itok=xVYNsVTi)
Painting of the Grand Canyon of the Yellowstone by artist Thomas Moran, who was part of the Hayden Geological Survey of 1871. Painting from the Smithsonian American Art Museum.
Painting of the Grand Canyon of the Yellowstone by artist Thomas Moran, who was part of the Hayden Geological Survey of 1871. Painting from the Smithsonian American Art Museum.
![Geologist Ferdinand Hayden at work with a rock hammer in 1870](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Hayden%20photo.jpg?itok=xhiWmW8o)
Geologist Ferdinand Hayden at work with a rock hammer. USGS photo by William Henry Jackson, 1870.
Geologist Ferdinand Hayden at work with a rock hammer. USGS photo by William Henry Jackson, 1870.