Among Yellowstone National Park's various geothermal basins, the Norris Geyser Basin just might be the most colorful, and it's long been accepted that it's the hottest. But how hot is it? The U.S. Geological Survey can tell you, thanks to a network of monitors that is taking the basin's temperature.

For only the second time in the past 150 years, Civil War buffs have the chance to view a rare collection of original firsthand drawings from that era. The 44 images were made both on and off the battlefield by Joseph Becker and other artist-correspondents, and they're on public display at Saint-Gaudens National Historic Site in New Hampshire through October 11.

Despite its remote location in southern Alaska, Katmai National Park and Preserve packs a surprising economic clout for the state, generating nearly $40 million a year, according to a study.

Here at the Traveler we'd like to welcome the National Parks Conservation Association to our list of sponsors, and welcome back the folks at Yellowstone Vacations for another winter season in the world's first national park.