Buffelgrass is the biggest threat to our ecosystem in southern Arizona and now, Sonora-Arizona Desert Museum is using sheep to get rid of it on.

A thin layer found in the top few centimeters of soil plays a big role in its ecology. Biocrust is built, maintained and ...

Organ Pipe Cactus National Monument in Arizona sits along a primary migratory flyway for birds stopping during their long journeys elsewhere. Birders, photographers, and those who simply enjoy ...

Hidden away in the Sonoran Desert, this ancient monument grants visitors a glimpse back in time and a chance to wander around ...

President Joe Biden will designate vast, ecologically rich swaths of southern California desert and of northern California woodlands as a pair of new national monuments in a visit to the state early ...

Biden to visit Coachella Valley Tuesday, expected to create Chuckwalla National Monument Another monument to be created in northern California ...

The second new monument will be the 200,000-acre Sáttítla National Monument in northern California near the Oregon border, the person familiar with Biden's visit confirmed.

It's where natural history perfectly blends with the iconic saguaro cacti, which dominate the park's landscape.

Conservation groups gathered to support two national monuments, opposing a plan by the Trump administration to open lands to ...

Named for the lizard found in the Sonoran and Mojave Desert and northwestern Mexico, Chuckwalla, which is south of Joshua Tree National Park, includes land sacred to tribes, a trade route used by ...