The cause of the derailment isn't immediately known, but weather is suspected.
A $5 million U.S. Department of Transportation grant will go toward a project to build an off-ramp for Union Pacific to enter the Port of Tucson.
Republicans compete in primary for the district north of Tucson.
Your old pizza box may one day be your printer paper.
Tucson jeweler Erik Stewart makes regular two-hour drives up Interstate 10 to do business in Phoenix. If a high-speed rail line connected the cities, he said he’d use it.
The city of Tucson has made a formal proposal to become the home of a $5 billion “gigafactory” for lithium-ion batteries for electric cars.
A Mexican company is moving into Tucson with plans to ramp up production of liquefied sugar cane to compete with widely used high-fructose corn syrup.
A $5 million grant to expand the ability to service rail freight in Tucson has put the region in a new league, officials said Saturday.
Union Pacific covets the land in the distance, seen from Picacho Peak, for a rail yard. It could also be part of a passenger rail route to Phoenix.
The state has got many of us dreaming of train trips between Tucson and Phoenix, but one major flaw is marring the fantasy: cost.
Tucson became Arizona's first port to service international cargo via rail Friday and industry leaders say it could redefine the region's economy.
A diesel locomotive with a haul that includes the first international shipping containers arrives during a ribbon-cutting ceremony at the Port of Tucson. With Union Pacific Railroad's stamp of approval, the Port of Tucson is now able to service the containers via Long Beach, Calif., and Los …
Geography, cost and a new attitude.
Tucson taxpayers will foot the bill for nearly $1 million in damages after a city employee improperly marked a waterline location.
PHOENIX - If the state sells up to 1,900 acres for a massive rail yard - 74 tracks at its widest - at Picacho, it will hurt the value of thousands of acres of state trust lands to the east, a report released Monday shows.
Tucson man kills self after child-porn arrest
A project to build a massive rail yard along Interstate 10 near scenic Picacho Peak is gaining momentum.
PHOENIX — A project to build a massive rail yard along an Arizona highway near scenic Picacho Peak is gaining momentum.
Six conceptual routes for a rail line connecting Tucson and Phoenix are under consideration by the Arizona Department of Transportation.
Emergency personnel are at the scene of a train derailment south of Tucson on Monday.