Nathan Rott

The National Park Service is celebrating the 100th anniversary of its creation this year. NPR spends time on the job with workers in the country's busiest national park, Great Smoky Mountains National Park, to explore the vast variety of work the park service does and the challenges it's facing.

Bernie Sanders and Hillary Clinton are looking beyond Saturday's results in the Wyoming Democratic caucuses to a bigger prize: the April 19 primary in New York.

The Albuquerque Police Department is one of nine major U.S. police departments that's working through a court monitored reform process for the use of excessive force. Some feel though that nothing has changed.

#NPRreads is a weekly feature on Twitter and The Two-Way. Correspondents, editors and producers share the pieces that have kept them reading. Each weekend, we highlight some of the best stories.

Five members of the U.S. women's national soccer team have filed a federal complaint against the U.S. Soccer Federation, alleging wage discrimination.

Voter turnout was big in Idaho, Utah and Arizona, and that meant long lines at polling places. In Idaho, the line into one caucus site was reportedly longer than a mile.

Bernie Sanders is the first candidate in 17 years to campaign on the nation's largest reservation, while Clinton has a long history working on tribal issues.

The GOP presidential front-runner scheduled rallies in Phoenix and Tucson on Saturday ahead of Tuesday's primary in Arizona.

Former First Lady Nancy Reagan was buried Friday next to her husband at the Reagan Presidential Library in Simi Valley, Calif.

The National Park Service has a longstanding diversity problem in its workforce and visitors. As the Park Service celebrates 100 years and looks to its next 100, it wants to change that.

Parks are expensive for obvious reasons: Visitor centers need displays, and roads need repairs. But there's also upkeep of the Grand Canyon's sewage operations and of Independence Hall's sprinklers.

Dow Chemical has settled a class-action lawsuit. The company said Justice Scalia's death means it's no longer likely to win in court. Other corporations may make the same calculation.

Several leaders and members of the Fundamentalist Church of Jesus Christ of Latter-Day Saints pleaded not guilty Wednesday to charges of conspiracy to commit fraud and money laundering.

Federal prosecutors indicted 11 members of the polygamous sect in Utah and South Dakota, on Tuesday, accusing them of running a scheme ...

The five remaining Republican candidates are aiming to gain an edge with Nevada voters before Tuesday's caucuses. But the issues important to conservatives vary.

Crews are working to permanently plug the methane gas leak that has forced hundreds from their homes in the Porter Ranch area of Los Angeles. Southern California Gas Company says the ...

BMX rider Dave Mirra, one of the most decorated athletes in X Games history, has died at the age of 41.

One person was killed as authorities arrested militants who had been occupying the federal refuge. Family identified the man as Robert "LaVoy" Finicum, an Arizona rancher and father of 11 children.

The tiny town of Wilder, Idaho, is about to make history by swearing in the state's first all Latino city council. Latino advocates are hoping to set an example for other majority Latino communities.

The Los Angeles Unified School District, the nation's second largest, closed down Tuesday after receiving a "credible terrorist threat." A similar threat was received in New York City, but schools remained open.

The FBI is now investigating the mass shooting in San Bernardino, Calif., that killed 14 people as an act of terrorism. At the site of the attack, workers were allowed to retrieve their cars Saturday.