While peregrine falcons are the main birds of concern at some Eastern parks, in Wyoming the rangers at Devils Tower National Monument are keeping an eye out for prairie falcons that might be nesting.

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.