More than 300 million visitors explored America’s national parks last year, from Acadia in Maine to Zion in Utah.

The Colorado River Crossing Balloon Festival is taking place all weekend long. The yearly Caballeros de Yuma event will ...

The noxious and fast-growing Eurasian watermilfoil has invaded a small lake in Pueblo connected to the Arkansas River, threatening more destruction.

Water from Colorado's West Slope basins plays a vital role in supporting the economy and natural environment across seven western U.S. states, but a new study finds that even under modest climate ...

Rudy Fischer, a recent transplant to the state and a former businessman, will become Arizona’s newest voice in the state’s ...

Colorado ranchers are renewing their demand for state wildlife officials to delay the release of more wolves until they ...

Rio Blanco County was eliminated from the original list, leaving Garfield, Eagle and Pitkin counties as target areas.