Climate change is accelerating the melting of the world's mountain glaciers, according to a massive new study that found them shrinking more t ...

The Marshall Mesa Trailhead will now be just a figurative, not literal, hotspot for mountain biking, horseback riding and hiking.

Boulder Open Space and Mountain Parks personnel took over the Marshall Mesa Coal Fire Mitigation Project area on Thursday, a ...

The byproducts of burning coal can cause significant health issues, according to a recent warning from an environmental ...