An air quality map shows conditions improving in the U.S. Friday as smoke from the Canadian wildfires subsides.

The man who attacked 12 people Sunday afternoon on Boulder’s Pearl Street Mall is being held on suspicion of first-degree ...

As Colorado residents and visitors begin planning summer trips, transportation officials are reminding travelers that summer ...

According to the NOAA, 24 states, including Alaska, Montana and North Dakota, might have a chance to see the northern lights ...

A new wolf activity map from Colorado Parks and Wildlife shows how far the state’s reintroduced wolves are ranging—while ranchers say the Memorial Day weekend brought another wave of attacks on ...