Yellowstone National Park officials have temporarily closed public access to the Artists' Paint Pots thermal area after a visitor broke through a patch of thin crust and received burns to her leg.

A couple that went missing for nearly a week in a rough and remote corner of Grand Canyon National Park survived by keeping their wits about them and waiting to be found after they realized they were lost.

The eruptive fury of Yellowstone National Park's geysers, those wonderful spouters of steam and hot water, seems to be determined by annual precipitation in the park, according to a study published in the journal Geology.

A tricky move, one some see as controversial, is under way to move Alexander Hamilton's "country home" to a new location in New York City.

Congressman Raul Grijalva, who heads the House subcommittee on national parks, is accusing Interior Secretary Dirk Kempthorne of pandering to the National Rifle Association.

After four days of overflights rangers in Denali National Park and Preserve are scaling back their search for two Japanese climbers missing on Mount McKinley.

Thanks to this past winter's hefty snowpack, the now-melting snow is accelerating the intensity of Yosemite National Park's waterfalls. If you're fortunate enough to have the time to visit the park, a trip to the Yosemite Valley in the coming weeks should reward you with an incredible display of the park's waterworks.

Despite opposition from the National Park Service and park advocacy groups, a development proposed for land bounded on three sides by Valley Forge National Historic Park has been given the green light by community planners.

A Salt Lake City couple that got turned around in a remote and rugged section of Grand Canyon National Park has been found. Park rangers plan to interview them today to find out exactly what happened.

When people talk about national parks, the discussion usually revolves around vacations, not biodiversity. And yet, America's national parks are biodiversity sinks. How extensive those sinks are, well, that's a good question. It's one researchers are trying to answer through All Taxa Biodiversity Inventories.

Swimsuit season is nearly here. Are you ready for the beach? There are loads of beaches in the national parks -- even a few “clothing optional” ones for people who don’t like tan lines. This week's quiz will assess your knowledge of all kinds of beaches in the national parks. Answers are at the end. No peeking.

A search is under way in Grand Canyon National Park for two Salt Lake City residents who are thought to have headed into the western portion of the park for a 45-mile backpacking trek.

Improving weather Monday was welcomed by National Park Service rangers searching for two overdue climbers on Cassin Ridge of Mount McKinley in Denali National Park and Preserve.

Perhaps you’ve noticed that Cape Hatteras National Seashore has made the top ten in Dr. Beach’s 2008 list of America’s Best Beaches. To put a finer point on it, Cape Hatteras Beach is ranked number eight.

The American Marten is a rare North Woods animal that you'll probably never see, save for paw prints in the snow. This brown, bushy-tailed little critter, which looks something like a cross between a mink and a house-cat, was prized for its luxurious fur and darn near trapped to extinction in the United States during the 19th century. Today, despite habitat losses and related problems, the American Marten still inhabits much of its historical range.

There is no need, nor justification, to allow concealed weapons into the National Park System. Interior Secretary Dirk Kempthorne needs to stand up to the National Rifle Association and for the National Park System.

A search is under way at Denali National Park and Preserve for two Japanese climbers who failed to descend from Mount McKinley on schedule. Poor weather has been hampering search efforts.

Star gazers will have an opportunity to scan the heavens from Grand Canyon National Park later in June during a week-long star party that will feature activities on both North and South rims.

It was 75 years ago that the first Civilian Conservation Corps teams arrived at Grand Canyon National Park. To mark that anniversary, the park is holding a symposium recalling the CCC's efforts in the Southwest.

Does the National Park Service have an obligation -- before the public comment period closes -- to better inform the general public about proposed changes to the existing gun regulations? While those who closely follow national park issues and gun issues more than likely are aware of the proposal to allow park visitors to arm themselves, does the general park-going public?

A historian who once headed the Theodore Roosevelt Association has pleaded guilty to stealing three rare letters -- one written by Abraham Lincoln and two by George Washington -- from a vault at the Theodore Roosevelt Birthplace National Historic Site.

Quite a few units of the national park system will benefit from the president's signing earlier this month of the Omnibus Natural Resources Bill. This hefty package contains 57 bills, some of which adjust boundaries of park units, others that call for studies into potential park units.

National Park Service Director Mary Bomar, in a decision she calls "in the best interest of the NPS," has frozen park entrance fees at 2007 levels. However, amenity fees, such as the nightly cost of a campsite, are going up as planned.

With waters that shimmer azure and forested flanks, the cataclysmic birth of Crater Lake National Park is usually little more than an afterthought for most visitors to this jewel.

Explosives experts have safely removed the remnants of 1930s-era explosives that were found late last week in Sequoia National Park's Crystal Cave.

A 500-megawatt power plant proposed to be built roughly 60 miles from Theodore Roosevelt National Park has been pulled off the table due to uncertainties over how pending climate-change legislation will impact carbon dioxide emissions.

May is one of the more enjoyable months to visit Canyonlands National Park in southern Utah, but for a college professor from Minnesota a backcountry trek apparently has gone amiss.

After months of restoration and rehabilitation work, Artist Point is ready to once again offer visitors to Yellowstone National Park expansive views of the Lower Falls that so inspired Thomas Moran more than a century ago.

Further proof that spring has arrived in the West is word that the Tioga Road across the high country of Yosemite National Park is now open. And, the cables that run to the summit of Half Dome also are in place for intrepid hikers.

Bridges are among the most favored of all human structures. They serve us well, make a bold visual statement, and open the door to a storehouse of memories. Who doesn’t admire the elegant lines of a suspension bridge? Who can look at a covered bridge without thinking of a time when life was simpler and slower and friendlier? This week's quiz will find out how much you know about the bridges and bridge-related things in our national parks. Answers are at the end. No peeking.