The operator of the Pinyon Plain uranium mine near the Grand Canyon is seeking changes to arsenic limits in one monitoring ...

Millions of people pull into the Grand Canyon’s South Rim each year, snap a photo from Mather Point, and feel like they’ve ...

Building the proposed data center west of Socorro will cause enormous adverse impacts. One important impact will be to ...

The drive along U.S. Route 60 between Globe and Show Low is roughly 60 miles of pure Arizona magic, the kind that reminds you ...

Lunar mantle rocks may be waiting at NASA’s Artemis IV south pole landing sites — ancient impact simulations and GRAIL ...

The Kayenta-Monument Valley Scenic Road delivers views so spectacular that your brain might temporarily forget how to form ...

The Verde Mining district grew to become one of the greatest copper producers in Arizona from 1883 until 1992. Two primary mines produced more than 99% of the district’s copper production: the United ...

New research finds the San Andreas and San Jacinto faults have reached their highest stress levels in 1,000 years.

After 320,000 acres in northern Arizona were nominated for oil and gas leasing, where experts say no oil or gas exists, a ...

This article was originally published by Votebeat, a nonprofit news organization covering local election administration and voting access. The U.S. Supreme Court’s decision to weaken a key section of ...