On Highway 93, en route to Missoula, it's hard to miss this billboard and Jermain Charlo's haunting gaze. Missoula police detective Guy Baker has been searching for Jermain for more than six years.

An ancient fossilized forest in Montana is reemerging 600 feet higher than the present-day tree line after spending the last 5,500 years encased in alpine tundra. But as temperatures continue to ...