Arizona might be known for its vast stretches of desert, but tucked out of sight is a pristine lake that's perfect for an off ...

The Emerald Ash Borer, an invasive species of bark beetle that was discovered in Colorado in 2013 and has been expanding through the state, has the potential to damage the Colorado landscape. And ...

There's a massive Joshua tree forest in northwestern Arizona. You can visit without the fees or crowds you'd find in a ...

The "coolcation"—a trip centered around cooler climates and breezy destinations—is experiencing a fresh wave of popularity as ...

The 35 trees, a variety of olive trees, were planted in the late 1800s by Robert Forbes, the first head of the Agriculture Experiment Station. Mike Christy / Arizona Daily Star Douglas Kreutz ...

TUCSON, Ariz. — The saguaro cactus is the iconic plant of the Arizona borderlands, and in June and early July, its ...

The saguaro cactus is the iconic plant of the Arizona borderlands, and in June and early July, its fruit ripens.

The saguaro cactus is the iconic plant of the Arizona borderlands, and in June and early July, its fruit ripens.

But it will be a long road. Aspen and locust trees, ferns and other plants that flourish after fires are greening the mountain landscape and gaining some size.

With Utah’s dry climate and extreme weather, Utah faces many of the same wildfire threats as California in January. Could Utah be next?

The largest forest in the United States is the Tongass National Forest, a sprawling rainforest in Alaska. Discover a list of ...

An average maturing tree under optimal conditions can transport up to 10,000 gallons of water only to capture about 1,000 usable gallons for the production of food and adding to its biomass.