Large wildfires in the desert were once rare. Now experts worry that invasive plants and a changing fire cycle are putting ...

The desert city in southern Arizona is a sanctuary for stargazers—and now it's even easier for visitors to explore.

My mom and I live on opposite coasts, but we've made it a tradition to take a mother-daughter trip almost every year — exploring places like Maine, Spain, Paris, Charleston, and soon Mackinac Island, ...

Climate change, drought, and fires — all caused or worsened by human activity — are rewriting the future of ancient Sonoran ...

We remember a song, written by Woody Guthrie, that, years ago, we would sing as we traveled across the New England states. It ...

Explore the rugged terrain and rare plants at one of Arizona's newest and barely visited national monuments, a serene cactus ...

Here’s everything you need to know to plan a trip to Saguaro National Park, including the best hiking trails, things to do, ...

TUCSON - Saguaro National Park East is home to an intricate web of hiking trails! Some take you up the mountain and others ...

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive portions of Pima County — have won a temporary ...

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive portions near Tucson — have won a temporary reprieve.

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive ...

Conservation groups say the proposed Arizona routes for an Interstate 11 project failed to consider habitat for imperiled ...