Snow in the Rockies now silently carries toxic metals from mines, revealing long-range pollution by winter storms.

Mountain snowpacks accumulate snow throughout the winter, building up stores of water that will supply communities across the American West throughout the long dry season.

Mountain snowpacks accumulate snow throughout the winter, building up stores of water that will supply communities across the American West throughout the long dry season. Now, a new study shows that ...

The region’s forests are adapted to fire. It’s a natural and necessary part of the ecosystem. Today’s megafires, though, burn longer and hotter than blazes in the past due to decades of ill-considered ...

Spotting a hoary marmot is a rite of passage for serious Pacific Northwest hikers. The charming and curious creatures can be found in the subalpine meadows of Washington’s North Cascades range, ...

Denver is the perfect starting point for incredible outdoor adventures, with breathtaking landscapes just a short drive away.

Discover the 20 Most Dangerous National Parks in The US in this in-depth look at extreme terrains, unpredictable wildlife, ...