A report released Wednesday shows an experimental release of water into the dry Colorado River Delta shows potential for how more regular flows could restore the environment.
Under a new proposal the National Park Service will allow more flights over the Grand Canyon in summer months, as an incentive for installing quiet technology.
Data from a mountain lion tracking project in Texas show the population is stable and may be growing. But this project is taking place on private land and most of the test area is owned by ranchers, who historically have no love lost for mountain lions.
The U.S. Interior Secretary visited the Glen Canyon Dam Saturday to celebrate its 50th anniversary. She also had another very important agenda item -- the vulnerability of the Colorado River and its water supply.
This month marks the 50th anniversary of Glen Canyon Dam. This dam and others along the Colorado River provide electricity and drinking water to millions of people across the western United States. But like all dams, from its beginning to present day the massive structure has been mired in controversy.
The endangered Mexican gray wolf would have a far greater territory to roam under new rules proposed by the U.S. Fish and Wildlife Service. It's the first proposed expansion since the agency began introducing wolves into the wild.
Bison living on the north rim of the Grand Canyon have overstayed their welcome. Federal agencies recently moved some of the herd off park land and back to their original home on the Arizona Strip.
The federal government just released 10 times the normal flow of the Green River from Flaming Gorge Dam to help an endangered fish and to boost hydropower downstream at Glen Canyon Dam on the Arizona-Utah border.
The Southwest wilderness can be a dangerous place. Outdoor enthusiasts must be prepared for many potential perils — extreme heat, snakes, flash floods. Many have survived near-death experiences.
After a long dispute the Hualapai Tribe and the family of a Las Vegas businessman have finally reached a financial settlement over the Grand Canyon Skywalk.