Antarctica's "Blood Falls" glacier bleeds red water, and scientists found hidden pressure beneath the mysterious millennial ice.

For more than a decade, a team of intrepid researchers have been exploring the river systems of southern Africa, one paddle ...

From Acadia’s granite coast to Zion’s red-rock canyons, these parks remain America’s greatest outdoor spectacle.

Bob Marshall Wilderness Complex in Montana offers a compelling, little-visited alternative to Glacier National Park, with ...

We absolutely LOVE the hikes in Olympic National Park! This amazing park encircles nearly a million acres in northwest ...