Nearly a decade after its completion, the Ann Day Memorial Wildlife Bridge near Oro Valley has become a vital lifeline for desert animals—and a model for balancing development with conservation.

The Santa Catalina Mountains are known for their diverse range in vegetation: The lower elevations of the mountains are dominated by desert landscapes, ...

I f you need a break from the sun, this popular summer getaway in Arizona is a great stop. Mount Lemmon stands at 9,157 feet, making it the tallest peak in the Santa Catalina Mountains, and it is ...

Mountain wildflowers on the Green Mountain Trail in the Santa Catalina Mountains near Tucson, Ariz., on May 26, 2013. 36 Trails on the eastern slopes of the Santa Catalina Mountains ...

A t the foot of the impressive Santa Catalina Mountains in Tucson, Arizona, Catalina State Park is a breathtaking escape into ...

If you can't get enough of the Santa Catalina Mountains just north of Tucson, you must visit Catalina State Park. This 5,000-acre park is an outdoor adventure seeker's dream with miles of hiking ...

A bolt of lightning ignited the Buster Mountain Fire at 3:30 p.m. on Monday afternoon in the Pusch Ridge Wilderness region of the Santa Catalina Mountains. Heidi Schewel, a public affairs officer ...

An estimated 85 bighorn sheep were living in the Santa Catalina Mountains near Tucson this spring after a reintroduction effort that began four years ago, according to Arizona Game and Fish ...