Boulder, Colorado, has consistently topped lists of ... You can either climb the First Flatiron on your own or hire a climbing guide for the day from Apex Mountain School. Photograph by Ronan ...

Just inside Camp 4, one of the most popular camping spots in Yosemite National Park, lies a bouldering problem that few hav ...

The BolderBoulder 10K is the epitome of a fun run. Nearly 50,000 participants (many in costume) weave through neighborhood ...

On a recent morning on the edge of East Helena, a sandhill crane landed next to a dense thicket of willows along a burbling ...

Colorado School of Mines students helped excavate the Edgar Experimental Mine in Idaho Springs to build a quantum computing ...