Opponents are appealing an air quality permit for the Copper World open-pits mine project , arguing Arizona should have ...

Environmentalists and farmers are challenging Arizona's approval of an air pollution permit for Copper World Mine, claiming it's lax on toxic dust.

A portion of U.S. Highway 93 in Arizona is being widening are part of a long-term project on the road linking Las Vegas and ...

The desert city in southern Arizona is a sanctuary for stargazers—and now it's even easier for visitors to explore.

Work on the Broadway Curve Improvement Project will block a long stretch of eastbound Interstate 10 this weekend.

The Tucson Police Department says a man was killed after being hit by an SUV. The TPD says the crash happened the evening of ...

Getting stuck behind a slow driver in the left lane of a two-way interstate is a common frustration for drivers commuting ...

Environmental and community groups have appealed the Arizona Department of Environmental Quality’s decision to grant an air ...

In response, U.S. Border Patrol agents stopped releasing migrants after processing them. Pima County officials said this sudden halt has cut off the flow of asylum-seekers into the Ajo Road and Drexel ...

With 450 vendors, the 22nd Street Show is the largest component of the Tucson Gem and Mineral Show. Admission is free, with a $10 parking fee.

As the newly sworn-in secretary of Transportation, Sean Duffy will have his hands full cleaning up the mess left behind by ...