Explore this little-known canyon in Iowa. Home to intriguing caves, miles of trails, and diverse wildlife, this is one of the ...

With 22 national parks and monuments to its name, Arizona boasts some of the most astonishing landscapes in the country, from the Grand Canyon to the towering buttes of Monument ...

What we know about southern Arizona bats that tested positive for a fungus tracked by the Arizona Department of Game and Fish ...

The Harmony-Preston Valley State Trail is a 18-mile stretch of pure, unadulterated nature. It’s perfect for biking, hiking, ...

At about 8 a.m., February 10, emergency crews at the Grand Canyon were notified of a report of a broken rock wall and ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Scientists in ...

Happy Statehood Day, Arizona. From Stevie Nicks and the Colorado River to creosote and Camelback Mountain, here's why we love ...

A review of national monuments threatens beloved natural and cultural landscapes protected under the Antiquities Act.

The body of a California man, a car, and various car parts were found 1,000 feet below Grand Canyon's South Rim.

Among the giant sequoias you’ll find an underground cave filled with stalactites, stalagmites, pendants and shields. – Danielle Bauter Note: As of June 2024, Kings Canyon Scenic Byway is ...