If you're planning a trip to Arizona's Grand Canyon, don't forget to check out this nifty little pool in its depths. But be warned! The water within is toxic.

Arizona is no stranger to weird and wild things. These nine landmarks were recently named the strangest in the state by World ...

Springs are the Grand Canyon’s native waters. Sustaining animals, native plants, and thirsty hikers alike, springs are the lifeblood of the Grand Canyon. Yet these biological hotspots are at risk.

Outdoor retailer REI has closed its Experiences business. Here's what that means for the campground it planned to open in ...

GRAND CANYON NATIONAL PARK, Ariz.— Tribes, conservation organizations and community groups today defended Baaj Nwaavjo I’tah ...

For every Old Faithful and Grand Canyon of the Yellowstone, there's a host of other obscure places like The Gumper, Lactose ...

The National Park Service opened a lottery for extended self-guided rafting trips along the Colorado River in Grand Canyon National Park this week, offering hundreds of spots for 2026.

Plants and animals need health lands and waters to live on the Colorado Plateau. Here's what we're doing to help beaver, ...

The Midway Geyser Basin's Grand Prismatic Spring is the largest hot spring in Yellowstone and one of the largest hot springs in the world. Measuring approximately 370 feet in size and around 121 ...