The Mount Graham red squirrel lives only in the Pinaleño Mountains on Mount Graham, an isolated “sky island” range in southeastern Arizona. Nearly all the squirrels are now living outside of the ...

Wildlife officials found there are 233 Mount Graham red squirrels, which can only be found in the Pinaleño Mountains of southeastern Arizona. These numbers reflect a sharp boost from the ...

The squirrels live only in the Pinaleño Mountains, an isolated “sky island” range in southeastern Arizona. Only about 78 remain on Earth. The squirrels’ current designated critical habitat includes ...

Located in Arizona's Pinaleno Mountains at an altitude of about 7,545 feet, the Large Binocular Telescope operates under an international collaboration between the U.S., Italy, and Germany.

The latest survey shows an increase of about 89 squirrels since last year, marking a positive trend for this species, which is native only to the Pinaleño Mountains in southeastern Arizona.

Impacted areas include the White Mountains of Graham and Greenlee counties, Galiuro and Pinaleno mountains and Catalina and Rincon mountains. Start the day smarter. Get all the news you need in ...