The Trump administration's mass firing of probationary employees raises red flags for those working in Arizona's federal ...

Quagga mussels have invaded much of the lower Colorado River, damaging equipment and degrading water quality ... according to Arizona State Parks and Trails: Stinknet is a fast-growing plant ...

Layoffs at the Grand Canyon are imperiling service just as our busy tourism and fire seasons ramp up. This could be a disaster for northern Arizona.

Think the yellow sprinkling of flora alongside the I-17 highway is testament to a beautiful blooming spring? Think again.

Some 1,000 NPS employees were fired, and hiring for seasonal positions was delayed. Here's what to know about the impacts already being felt at parks, and what it could mean for the busy season.

At least five national parks, monuments and forests in Arizona were expected to see protesters ... What did Amkor promise to keep $2B Peoria plant safe for water, air? Daughter remembers Tempe ...

Over 38 percent of Arizona is federal public lands managed by agencies overseeing parks and forests ... activities for the Transcanyon Water Distribution Pipeline, a large infrastructure project ...

Arizona State Parks & Trails management will no longer ... featuring a popular natural water slide, will charge guests $30 from May to September and $20 from October to April.

More people getting outside is a sign that Southern Nevada’s outdoor recreation economy is growing, which is good in a lot of ...

National parks across the U.S. are bearing down on ... from asking hikers how much water they have to gently making sure people keep a safe distance from wildlife. They also perform more overt ...

the senior vice president of government affairs at the National Parks Conservation Association — a nonprofit that advocates for the NPS — says these workers take care of visitors in subtle but ...