Grant signed the bill creating Yellowstone Park, the first national park in the history ... the Northern Pacific's track-building stalled more than 500 miles from the park. Those who were prepared ...

Researchers are urging Yellowstone officials to invest in greater protection after the findings of a new report ...

As the headquarters of Yellowstone National Park, the Mammoth Springs Historic District is also home to historic buildings, including structures that date back from the Fort Yellowstone days ...

New research shows that dead trees in Yellowstone National Park may pose a greater fire danger than previously suspected.