Construction is planned this weekend on the I-10 east between SR-51 and US-60. See which ramps will be closed.

The three most difficult trails on South Mountain will close when the National Weather Service declares heat warnings from 8 a.m. to 5 p.m.

This town tucked high in the Chiricahua Mountains is surrounded by towering cliffs and lush forests. Here's how to plan a trip to tiny Portal, AZ.

ADOT says eastbound I-10 will be closed between the SR 51 “mini-stack” interchange and the U.S. 60 from 10 p.m. on Friday ...

The EPA's decision on the Valley's ozone nonattainment issue could have big impacts on public health and the local economy.

Starting at5 a.m. on March 24, McKellips Road will be closed between 92nd Street and Longmore Road until 5 p.m. on May 23, ...

PHOENIX — Air travel has long been thought of as the safest way to get around the country. However, a series of high-profile ...

Arizona has an expanding semiconductor sector and the state has made inroads in space travel. The two industries could help each other grow together.

A mountainous community in Arizona promises visitors a gorgeous state park, good restaurants, and beautiful hiking trails ...

A large winter storm bringing snow and rain is hitting Arizona, forcing closures of I-40 in Ash Fork, Kingman and Winslow.

Corrections & Clarifications: A previous version of this article should have said the DPS traffic ... with the Arizona Department of Public Safety, told The Republic. Phoenix police accused ...