By analyzing the natural vibrations of a saguaro, scientists can study the cactus's insides without cutting them open.

Saguaro Park in southeastern Arizona, near Tucson, offers a landscape unlike anything you’ll see elsewhere. The park hosts ...

Each side of Saguaro National Park offers a visitor center with restrooms and watering stations. Visitors will find maps, ...

Scientists discovered how to study cactus movement without harm - by measuring the silent sway of these desert giants using ...

As the trail wound its way into Arizona's Sky Islands, the region's biodiversity was on full display, as were the threats ...

Hikers sometimes take a short side trip to the site of Bridal Wreath Falls — which may or may not be running depending on ...

Tony Davis Aug 3, 2024 Aug 3, 2024 Updated Sep 8, 2025 A small, iridescent, purple-tinged bird darted from Joe Siegrist’s just-unclasped hands, and quickly flew out of human view. “Ooh!” an onlooker ...

This is a hike out to a hidden desert lagoon in the Sonoran Desert north of Phoenix. We head out past Tonto Hills on our way ...

Moving away from Arizona means saying goodbye to more than just endless sunshine and towering saguaros. The food scene here ...

Home to amazing national park sites, including Grand Canyon National Park, there are plenty of national parks in Arizona to ...