For the second time in a decade, the U.S. government has removed grizzly bears in the Yellowstone region from the threatened species list.

For mountain bikers, North Dakota's Maah Daah Hey Trail is such a treasure that people come from all the country to experience it

With reports of sexual harassment and other misconduct tarnishing the National Park Service's image, one of its premier sites is preparing to discipline as many as 10 workers

Outdoor recreation industry leaders holding their last trade show in Utah have criticized GOP leaders for their opposition to a new national monument and their efforts to seize control of federal lands

California wildlife officials say a female gray wolf and her mate have produced at least three pups this year in the wilds of Northern California

An elite rock climber has become the first to climb alone to the top of the massive granite wall known as El Capitan in Yosemite National Park without ropes or safety gear

Researchers trying to preserve native cutthroat trout in Yellowstone National Park say they are on track to eliminate non-native predator fish from Yellowstone Lake in about a decade

An elite rock climber says the biggest hurdle to scaling Yosemite National Park's El Capitan without safety gear was mentally preparing for it

Albanian residents and a non-governmental organization have filed a lawsuit against the government for giving a permit to build a hydropower station in a protected valley