For over 25 years, the endangered Mount Graham red squirrel has been quietly battling population decline atop one of Arizona’s tallest mountains. Endemic to the Pinaleño Mountains in Southern Arizona, ...

TUCSON, Ariz.— A federal judge has ordered the Trump administration to make a long-overdue decision on whether to expand critical habitat for Arizona’s highly endangered Mount Graham red squirrels.

The endangered Mount Graham red squirrel population has stabilized at around 232 individuals, even during a persistent drought in the Sky Islands. Conservation efforts have helped the species recover ...

The Mount Graham red squirrel continues its climb back from the brink, seven years after a wildfire nearly wiped it out. The endangered rodent’s numbers have jumped by more than 61% over the past year ...

Arizona is one of the most uniquely beautiful states in the U.S., but with that comes a certain reputation. Far from the rich green forests of Appalachia or the celestial aspens of Colorado, Arizona ...

Mark Marchetti, president and CEO of Mt. Graham Regional Medical Center in Safford, Ariz., is planning to retire in January, according to an Eastern Arizona Courier report. Mr. Marchetti has served as ...

The Large Binocular Telescope (LBT) will have a new director starting Sept. 1, 2005. Richard Green, currently director of Kitt Peak National Observatory (KPNO), is making a move to the Large Binocular ...

VERTICAL ZONATION OF GREAT SOIL GROUPS ON MT GRAHAM ARIZONA AS CORRELATED WITH CLIMATE VEGETATION AND PROFILE CHARACTERISTICS WP MARTIN AND JOEL E FLETCHER ...