Photos from the Mount Washington Observatory show the amount of snow that was lost in a 24-hour period amid the warm April temperatures.

Crews snapped a photo of a rare weather phenomenon known as a "snow devil" on New Hampshire's Mount Washington.

"Two valleys on different sides of Mount Washington, New Hampshire, can have much different levels of fall colors. It all depends on the temps in those valleys and how much sun they get ...

The four acres of open urban Pittsburgh hillside that drops away from the eastern end of Grandview Avenue on Mount Washington is now probably as nameless as its ever been. As part of the unwinding ...

A Quebec hiker was rescued Saturday night after suffering multiple injuries in a fall near Mount Washington, officials said.

Mount Washington Observatory forecaster Alexandra ... But I have been up there on clear days and it is an astounding view. So what's life on the summit like? You're up there for eight days at ...