Teton Pass, section of highway in Wyoming, collapses in mudslide

A large section of Teton Pass mountain highway in Wyoming collapsed in a mudslide, closing a main artery to Jackson Hole as summer tourism season starts.

Invasive mussels pose threat to Yellowstone National Park

Because of the park's location, the introduction of invasive mussels could put the currently mussel-free waters in Wyoming, Montana, and Idaho at risk.

Judge to decide on abortion laws in Wyoming, including first explicit abortion pills ban

A hearing in a lawsuit challenging the state's abortion laws is set for Thursday afternoon. Any decision on the bans is likely to be appealed to the Wyoming Supreme Court.

Yellowstone National Park finds 1st case of fatal brain disease after deer carcass tests positive

Yellowstone National Park has confirmed its first case of chronic wasting disease (CWD) on Tuesday after a deer carcass in the park tested positive for the highly contagious and fatal brain disease

Arizona woman gored by bison at Yellowstone; 'Hands down the most difficult thing I've witnessed'

A Phoenix woman's fiancé is talking about "most difficult thing I've witnessed" after she was struck and thrown up into the air by a bison at Yellowstone National Park while on vacation.

Nightly Roundup: Monsoon storm moves into Phoenix area; shocking twist in stepdaughter murder case

From a shocking twist in the trial of a man accused of killing his stepdaughter, to a monsoon storm that is making its presence known in parts of the Valley, here's a look at some of our top stories tonight.

Rural travel destinations where you can unplug and have fun this summer

Looking for a vacation destination with some country charm this summer? Places with a small town feel are sometimes what you need for the ultimate relaxation vacation.

Rangers seek pair accused of 'harassing' bison calf in Grand Teton National Park

National Park Service rangers have opened an investigation into two individuals who are accused of "harassing" a bison calf in Grand Teton National Park on Sunday afternoon.

Watch: Large bison herd escorts calves across road in Yellowstone

The reddish-brown calves are born in late April and May and can keep up with the herd 2 to 3 hours after birth, according to the National Park Service.

Rare white bison born at Wyoming state park

The park has seen an uptick in visitors hoping to get a glance of the cute calf.