The Castner Glacier ice cave off the Richardson Highway near Black Rapids attracts some 8,000 people annually. But federal officials and a University of Alaska professor are advising hikers to be ...

Hiking glacial terrains gives adventure seekers an opportunity to explore some of Earth's most breathtaking landscapes ...

The Knik River Valley has everything from glacial hikes to horseback rides and dog sledding—and it's a must-visit when visiting Alaska's Denali National Park.

Alaska: Ancient cave sediments provide new climate clues ... The sediments analysed are between 20,000 and 17,000 years old and were deposited in the cave towards the end of the last ice age.

Jason Gulley has spent 19 years crawling through the insides of glaciers, from Alaska to Nepal. Sometimes these caves, carved through the ice by running water, are large enough for a truck to ...

The ice caves are formed as avalanches scour down a chute along the mountain. The boulder field approaching the cave is always dangerous, as rocks can roll down the mountain at any time — in ...