• Visitors enjoy an eruption of Old Faithful from the Inn.

    Yellowstone

    National Park ID,MT,WY

  • Temporary Road Closures Possible!

    Snow is forecast for the Memorial Day holiday weekend. This could result in some temporary road closures. Updated Yellowstone road information is available by calling 307-344-2117.

Porkchop Geyser

(Left) Steam rises from Porkchop Geyser before its hydrothermal explosion. (Right) Slabs of stone lay around the geyser's crater after the explosion.
 

Dramatic behavioral changes have characterized Porkchop Geyser during the last decade. Once a small hot spring that occasionally erupted, Porkchop Geyser became a continuous spouter in the spring of 1985. The force of the spray caused a roar that could be heard at the museum over 660 yards (603m) away. On September 5, 1989, Porkchop Geyser exploded. Rocks surrounding the old vent were upended and some were thrown more than 216 feet (66m) from the feature. Porkchop Geyser is now a gently rolling hot spring.

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Did You Know?

Dog Hooked to Travois for Transporting Goods.

Some groups of Shoshone Indians, who adapted to a mountain existence, chose not to acquire the horse. These included the Sheep Eaters, or Tukudika, who used dogs to transport food, hides, and other provisions. The Sheep Eaters lived in many locations in Yellowstone.