A haze of smoke from wildfires burning in Colorado wafted into counties along the Interstate 70 mountain corridor on ...

The U.S. Geological Survey will conduct low-level helicopter flights over parts of southern Colorado to map critical minerals using airborne geophysical technology, beginning in mid-July. The ...

In the final month of spring, the movements of Colorado’s collared gray wolves continued to be spread across the Western Slope, with some activity pushing further south and west than in prior months ...