So want to race an epic. You've dabbled in the local race circuit and you're ready for the ultimate challenge. Well, look no further than our list of the world's best ...

With a competent guide, active volcano treks are both safe and worth the climb. Here are some of the tallest active volcanoes ...

Cyril Dupuy, the founder of smart telescope maker Vaonis, has set a new record by capturing Europe's highest-altitude image ...

Back in 1935, Hunter Fire Tower Observer William (Bill) Byrne was beginning his 20 years of employment with the New York City Fire Department. Now, years later, he was again ...

When climbing the world’s tallest mountains, what counts as cheating? Four climbers went up and down Everest in under a week with the help of xenon gas—a record-breaking ascent that has ...

An extensive four-day search for a New Hampshire man who had been missing in a notorious range of the Rocky Mountains ended in tragedy earlier this week.

Two men were struck by lightning on a Colorado mountain last week, prompting one of the highest helicopter rescues on record in the state.

Two men who were struck by lightning near the summit of Torreys Peak were flown to safety in what is believed to be the highest helicopter rescues on record in Colorado.

Mount McKinley in Alaska, the tallest mountain in North America, has been called Denali by Alaskan Native people for thousands of years, so why won’t the Trump Administration let it go by its… ...

Torreys Peak is ranked variously as the 11th or 12th highest summit in Colorado and is less than 200 feet shorter than the state's highest mountain, Mount Elbert.