Nearly 50 acres in the foothills of the Tucson Mountains have been added to Saguaro National Park, bringing its total ...

The Trust for Public Land has acquired 47 acres for Saguaro National Park, increasing the linkage to Pima County's Sweetwater ...

Almost 50 acres on Tucson's west side have been added to Saguaro National Park, just as the Trump administration reportedly ...

The city of Tucson, Arizona, sits on America’s southern border, surrounded by the cactus-strewn landscapes of the Sonoran ...

Saguaro National Park West will grow by 47 acres after the Trust for Public Land (TPL) acquired land in the foothills of the ...

From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

The endangered Mount Graham red squirrel was classified as endangered in 1987, with population numbers ranging from 35 to 550 ...