Planning for a new interstate through southern Arizona has been put on hold. 280 miles of highway between Nogales and Wickenburg expanding Interstate 11 had been proposed by federal and state ...

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive ...

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive portions near Tucson — have won a temporary reprieve.

The Chuckwalla and Sáttítla national monuments would safeguard landscapes that Native American tribes have revered for thousands of years.

The west option would have the most pronounced effects on wildlife and public lands. North of Tucson, the highway would run alongside Sonoran Desert National Monument, threatening its wilderness and ...

At Butcher Jones Recreation Site, you can hike along the shores of Saguaro Lake for sweeping views of the Sonoran Desert.

One will be the Chuckwalla National Monument, encompassing more ... where the Mojave Desert meets the Colorado and the Sonoran Desert, a veteran conservationist with direct knowledge of the ...