Inside Yellowstone - Hayden Valley

More Information

Yellowstone National Park, Its Exploration and Establishment - Hayden and Barlow Parties

Washburn and Hayden Expeditions

Past Climatic Patterns - Official Park Website

Ferdinand Vandeveer Hayden - Wikipedia

Thomas (Yellowstone) Moran - National Gallery of Art

Thomas Moran - Wikepedia

Thomas Moran - American Visionaries - National Park Service Website

Thomas Moran - Yellowstone Artwork - National Park Service Website

Thomas Moran's Diary - Official Park Website

William Henry Jackson - Wikipedia

William Henry Jackson Photos - National Park Service Website

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