Fossilized teeth show that two different kinds of ancient human ancestors coexisted more than 2 million years ago. One of ...

States such as Florida, Arizona, South Carolina and Texas are go-to spots for new retirees. These sunny locations have ...

Federal officials say Arizona, Nevada and Mexico must again live with less Colorado River water as drought lingers in the ...

Arizona, Nevada and Mexico will be subject to substantial cuts from their Colorado River allocations for the third year in a ...

A Tier 1 water shortage will remain in effect through 2026 for Nevada, Arizona and California, the federal government ...

Arizona, Nevada y México volverán a vivir con menos agua del río Colorado mientras persiste la sequía en el oeste de Estados Unidos, ...

Nevada will face a 7 percent cut in its share of the Colorado River based on a reservoir projection released Friday, marking ...