Proponents envision this project as part of an interstate route to Las Vegas ... and lands protected under Pima County’s Sonoran Desert Conservation Plan. Photo of proposed "West option" for I-11.

The free event at the west end of El Tiro Road will last from 9 a.m. to 3 p.m. and feature four guest speakers, about a dozen ...

Carolyn Campbell, the founding executive director for the Coalition for Sonoran Desert Protection, worked with Grijalva on environmental conservation. Together, she said, one of their greatest ...

For thousands of years, the Santa Cruz River has been the beating heart of the Sonoran Desert. Today, conservationists argue ...

Livestock grazing and urban development, along with the ever-increasing use of off-road vehicles, continue to degrade the tortoise's vanishing habitat, while Army translocation projects ... called ...

The latter option could have a negative affect on the desert landscape in this area, conservation groups claim. “The agencies involved have failed to address the devastating harm this project ...