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.
Two endangered Mexican wolves have been removed from the wild and are undergoing testing to determine if they're behind a string of livestock deaths in southwestern New Mexico, marking the latest wrinkle in the strained effort to return the predators to the American Southwest.
As Grand Canyon National Park focuses on sustainability in its centennial year, park concessioners have stepped up their environmental game to support the park’s iconic natural resources.
U.S. wildlife officials plan to lift protections for gray wolves across the Lower 48 states, re-igniting the legal battle over a predator that’s running into conflicts with farmers and ranchers as its numbers rebound in some regions.
Cave explorers from Colorado recently surveyed 594 feet in Wind Cave National Park, bringing the total length of surveyed passages to 150 miles.
The National Park Service is conducting an investigation into whether employees and visitors at Grand Canyon National Park were exposed to unsafe levels of radiation.
Calling a measure to permanently ban uranium mining near the Grand Canyon just and overdue, Rep. Raul Grijalva (D – Tucson) stood before a full house Feb. 23 at Grand Canyon to announce the Grand Canyon Centennial Protection Act.
Season of change?
According to a recently-released report, communities surrounding the North Rim of Grand Canyon National Park could see an economic impact of about $14 million per year to the region if the national park extends its open season by four weeks.
Arizona environmentalists say they have filed a notice of intent to sue and compel the U.S. Fish and Wildlife Service to expand critical habitat for Arizona’s highly endangered Mount Graham red squirrel.