One CD-Rom that works with either Mac or PC. Mapping software that let's you zoom in and out, pan right or left, and take a bird's eye 3-D view of the lay of the land. And the ability to load the map onto more than a few GPS units. Has National Geographic hit upon something with its Trails Illustrated Explorer series?

A backcountry traveler in Glacier National Park apparently was swept to their death by an avalanche Thursday, park officials said.

Yosemite entertains millions every year with alpine wilderness, sequoia groves, and a glacier-carved valley of unmatched beauty. Let’s take a look at some interesting visitor use statistics for this big, gorgeous park.

President Obama's announcement that he will pursue off-shore drilling along much of the Eastern Seaboard spurred this week's "bonus" Reader Participation Survey.