Home to the Flatirons and the University of Colorado, Boulder is a scenic gateway to hiking, mountain biking and skiing, ...

The trail also comes as Erie is one of the fastest-growing areas in Colorado. "Cyclists, you know, that do try to make the connection between Erie and Boulder ... are risking their lives on the ...

A rock slide has damaged a popular trail in Boulder Canyon. The City of Boulder Open Space and Mountain Parks Department has temporarily closed Boulder Falls because of that damage. Boulder ...

The City of Boulder is emphasizing the importance of outdoor safety after two people died in separate incidents in the ...

Can Boulder handle hundreds of Hollywood elite in limousines, dozens of red carpets and worldwide media attention?

Boulder sheriff’s officials found the man’s car parked near the Gregory Canyon trailhead Wednesday morning and called a ...

Workers will close the Cottonwood Trail in northeast Boulder temporarily next week ... as ‘a man’s man’ who fought in WWII Colorado homebuilder auctioning off multimillion-dollar Star ...

An envisioned "world-class" mountain biking trail system is taking shape in southwest Colorado's San Juan Mountains.

For the second time in a week, someone died while hiking the Flatirons, the Boulder County Sheriff's Office said.