A remarkable finding has surfaced in the colorful, fossil-rich badlands of Arizona's Petrified Forest National Park: North America's oldest known pterosaur. The newly identified species - a flying ...

The move is to protect the park’s native and wild trout fisheries. High temperatures and low river flow must improve until ...

The National Park Service is clearing up any misconceptions on whether wildlife is migrating away from Yellowstone National ...

The largest accessible cave in the world is hidden below the Guadalupe Mountains in New Mexico, near the Texas border, where ...

With a reduction in staff, hundreds of millions in proposed budget cuts and a mandate to prioritize visitor experience, the ...

Initial assessments show that the visitor center and entrance booth survived the fire, but other buildings were destroyed or ...

Onscreen, at least, there are enough rangers to keep Yosemite running and to investigate a mysterious death at El Capitan.

The National Park Service is defending its handling of a lightning-sparked wildfire that destroyed the nearly century-old ...

Here's how my husband and I climbed 1,488 feet on Angels Landing in Zion National Park after we were lucky enough to win the ...

Experts say that current pressures could change "the National Park System irreparably for future generations." ...

Yellowstone geologists discovered the baby hydrothermal feature in April while doing routine work at Norris Geyser Basin, the ...

The fire that burned for days on the North Rim of Grand Canyon before it became uncontrollable was "expertly handled," the ...