Winter's late departure challenged the crews tasked with clearing the snow from Glacier National Park's Going-to-the-Sun Road, but they've completed the task and the road opened to traffic on Wednesday, tying the latest date for allowing traffic on the road.

The five-word message flashes urgently on a solar panel sign mounted on a trailer parked by the Prince Edward Island National Park entry kiosk.

The National Park Service is launching a study into whether there are wilderness quality lands at Valles Caldera National Preserve in New Mexico and is seeking public comments to help with the assessment.

Aerial bombardments, bulldozers, hand tools, and even artificial clouds of humidity are being used at Yosemite National Park to combat the Washburn Fire, which continues to grow in size, fed by acres and acres of dead and down trees and thick ground layers of combustible forest litter.