• Crater of Mud Volcano, Yellowstone Park Wyo.

    Acmegraph Co

    Colorized postcard of the Mud Volcano's crater in Yellowstone National Park. The Mud Volcano also known as the Mud Geyser became popular in the 1870s because it would erupt every few hours exploding m…

    View Full Item  in Billings Public Library
  • Fountain Geyser, Yellowstone Park.

    Acmegraph Co

    Colorized postcard of the Fountain Geyser in Yellowstone National Park. Great Fountain Geyser has one of the prettiest settings of any geyser in the Park. Its vent is located in the middle of a pool,…

    View Full Item  in Billings Public Library