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Want to get outside? You can explore some of Idaho’s most scenic spots for free. The U.S. National Park Service is offering no-cost admission to must-visit sites across the United States in ...

A couple hundred years ago, the American heartland was home to massive herds of migrating bison - tens of millions of them crossing the plains, their hoofs sounding like distant thunder. Today, the ...

Yellowstone’s roaming bison herds enhance nutrient cycles and boost ecosystem health at landscape scales, according to a new study. The findings, which challenge conventional grazing wisdom, suggest ...

Beneath Yellowstone National Park lies a complex and extensive volcanic system. More geological changes are occurring at Yellowstone National Park, as another hole forms in one of the park's basins.

A new study finds free roaming bison in Yellowstone National Park are reshaping the ecosystem. They have had a positive effect on grasses and soil, but some changes may not be for the better. KUOW is ...

National parks have been called "America's best idea," and on Thursday, they could end up being America's best bargain. August 4 marks another free entry day to all National Park Service sites that ...