Phoenix Zoo officials say the first litter of endangered Mexican Gray Wolf pups has been born there in 20 years.
Kaibab National Forest employees held a morning brief May 31 on the North Rim of Grand Canyon in preparation for the 2019 fire season.
U.S. Interior Secretary David Bernhardt has agreed to put off oil and gas leasing for a year on land that Native Americans consider sacred.
Water managers are marking completion of a long-negotiated plan for 40 million people and vast irrigated farms to share crucial Colorado River water.
NPS has purchased 680.8 acres of private land within Death Valley National Park’s borders.
Increase in recreational and visitor access proposed for Paria Canyon- Vermilion Cliffs Wilderness area
BLM seeks public comments
A 45-day public comment period will run from May 8 to June 21.
A noisy geyser in Yellowstone National Park has roared back to life after three years of quiet.
One of the most exclusive and dramatic hiking spots in the southwestern United States could see bigger crowds under a new proposal unveiled May 8.
Lawmakers in Congress are scheduled to take up legislation protecting grizzly bears against future hunting as federal and state officials appeal a court ruling that blocked planned hunts in Wyoming and Idaho.
Ted Kennedy sums up what he sees along the river in the Grand Canyon: "It's buggy out there."
As park visitation continues to climb, Grand Canyon National Park has finalized a plan to provide water reliably to the South Rim and several locations below the rim.
The scavenger-cleaned bison carcass scattered across the grassland provided the perfect punctuation point for Nathan Varley.
Science panelists discuss where Grand Canyon research has been — and where it's going
Standing at a point along the rim and gazing out into the Grand Canyon, it’s sometimes difficult to remember that the Canyon is more than a beautiful piece of scenery.
Missouri wildlife officials have placed six Mexican wolf pups born in captivity near St. Louis with two packs in the wild, in a new effort to repopulate the critically endangered species.
Mexican Gray Wolf population increases by 12 percent
Things are looking up for the endangered Mexican Gray Wolf, which suffered setbacks during the last year and the year before.
A park ranger in Congo has described how he captured a selfie with two gorillas that went viral.
Hualapai Tribal Council reinstates per-person fee for river runners
River runners embarking on trips down the Colorado River along the Grand Canyon’s western side will need to hand over more cash this year, after the Hualapai Tribal Council approved a $100-per-person fee April 10.
A dispute between two major California water agencies is threatening to derail a hard-won agreement designed to protect a river that serves 40 million people in the U.S. West.
Sustainability for the next 100 years
Grand Canyon National Park held it's annual Earth Day celebration April 20 at the park's Visitor Center.
A plan to address a shrinking supply of water on a river that serves 40 million people in the U.S. West is headed to President Donald Trump.
The endangered Mexican Gray Wolf is still endangered — for now.
Lone surviving egg of bald eagle pair won't hatch this year.
On April 3, Grand Canyon Railway, in consultation with the National Park Service (NPS), will be applying herbicide along the railroad tracks including those within Grand Canyon National Park.
Seven states that rely on a major waterway in the U.S. West have finished a years-long effort to create a plan to protect the Colorado River amid a prolonged drought, the federal government declared March 19.
Proposed expansion to be completed in phases
Sitting back from State Route 64 just south of Tusayan, Ten X campground offers visitors eager to experience Grand Canyon National Park a placid alternative to the park’s camping accommodations.