This effect wins out over warm air rising. The warm air in a thermal will cool as it rises, until it reaches the temperature ...

See how filmmakers captured the death-defying mountain descent of spectacled bears on The Making of The Americas.

One of the greatest mountain guides, Kami Rita, will attempt to scale the world’s highest peak for the 31st time — and ...

A new drone service is delivering supplies such as ladders and oxygen cylinders on Mount Everest, making it safer for Sherpas and cutting the time it takes to get supplies up the mountain – as well as ...

One of the greatest mountain guides will attempt to scale the world’s highest peak for the 31st time — and possibly the 32nd ...

On Wednesday, another weak system drops into northern Utah, bringing a chance of showers again to northern Utah. Snow levels will hang around 8000 feet, and we’re not expecting much precipitation at ...

Scramble over rocky terrain to reach the highest peak in Nevada, where you're rewarded with gorgeous overarching views of the forest below.