If Congress slashes spending for Medicaid, Indian country would be in "big trouble" and face further health care setbacks, according to experts.

Environmental groups say the federal government violated the National Environmental Policy Act by failing to consider the ...

From two Colorado lines to more Amtrak service, Southwest states are advancing passenger rail projects, but the Trump ...

With threats of avian flu and lead poisoning, biologists are working overtime to care for a species that nearly went extinct.

Over environmental advocates' objections, a panel of judges ruled the U.S. Forest Service didn’t violate federal law by ...

Though its Arizona population ... populations in Mexico, and bolster its populations with upstream migrations of fish from Sonora after droughts,” Kemppinen said. “The new construction makes ...

Tariffs have made headlines in recent days with higher duties in the works for Mexico, Canada and China. How does Arizona fit ...

A US Forest Service livestock plan for federal lands in Arizona and New Mexico got the go-ahead from a federal appeals ... jeopardized the endangered Mexican Gray Wolf after the species population has ...

The United States is a diverse country where every state has its own culture, history, and quirks — and some of those quirks ...