Indigenous groups in the U.S. and Canada are leading efforts to restore bison across North America more than a century after European settlers drove the species to near extinction.

President Joe Biden's granddaughter, Naomi Biden, and her fiance, Peter Neal, are joining the small club of people who have gotten married at the White House.

Thirty water agencies that supply cities across the western United States are pledging to rip up lots of decorative grass to conserve water in the over-tapped Colorado River.

Yellowstone National Park officials say a foot found floating in a hot pool last summer belonged to a 70-year-old man from Los Angeles.

A Montana judge has temporarily restricted wolf hunting and trapping near Yellowstone and Glacier national parks and imposed tighter statewide limits on killing the predators.