A Romanian tourist has died in a fall near a waterfall in Yosemite National Park in California
Wildlife officials are asking people who are traveling near Glacier National Park to report sightings of animals crossing the road
A 10-year-old Colorado girl who climbed Yosemite National Park's famed El Capitan says she was overwhelmed and emotional when she reached the summit
A federal report shows visitors to Yellowstone National Park spent nearly $513 million in neighboring communities last year
Officials say a German tourist hiking in Zion National Park has died after collapsing on a popular trail
Red-legged frogs made famous by Mark Twain are thriving in Yosemite Valley after a decades-long absence
An heir to the Walmart fortune, a wealthy governor and oil companies could fund a big chunk of the private money needed for a Theodore Roosevelt Presidential Library in North Dakota's western Badlands
Democratic presidential candidate Beto O'Rourke has announced his first major policy initiative, a $5 trillion plan to combat climate change
Proposed Arizona highway called both economic benefit and environmental threat
A park ranger in Congo has described how he captured a selfie with two gorillas that went viral