U.S. Agriculture Secretary Brooke Rollins closed the border to Mexican cattle for a second time after new reports of screwworm infestations.

The 80th anniversary of the Trinity Test arrives in New Mexico at a poignant moment in New Mexico’s nuclear legacy.

The first military zone, set up along a 170-mile stretch of border in New Mexico in April, came days after an executive order ...

More Americans are now eligible for compensation for health problems linked to radiation exposure from the atomic weapons ...

A meteorite that struck near Winslow, Arizona, about 56,000 years ago may have triggered a massive landslide in the Grand ...

5. Iowa: Yes, Iowa! The Hawkeyes will be led by quarterback Mark Gronowski, the former FCS player of the year, two-time national champion and 42-5 starter at South Dakota State. He’s Iowa fans’ reward ...

The National Park Service is defending its handling of a lightning-sparked wildfire that destroyed the nearly century-old Grand Canyon Lodge and dozens of historic cabins, saying containment lines had ...

Arizona’s top legal official is asking for federal laws to prohibit immigration enforcement agents from wearing facial coverings during raids.

Experts have sounded the alarm after determining that miles of new border wall slated for Arizona would cut off migration ...

Adelita Grijalva will win the special Democratic primary in Arizona’s 7th congressional district, CNN projects.

A wildfire destroyed a historic lodge at the Grand Canyon's North Rim and some political leaders want to know if the fire was ...

The livestock evacuated during a wildfire on the Navajo Nation have returned home. The Window Rock Fairgrounds took in more ...