We put all kinds of limitations on ourselves,” said Betty Kellenberger. “Sometimes the biggest one is we don’t get up and try ...

At 80 years old, Betty Kellenberger recently became the oldest woman to ever hike the entire Appalachian Trail.

At 80 years old, Betty Kellenberger recently became the oldest woman to ever hike the entire Appalachian Trail.

There are trail running shoes for all terrains and distances these days, but what about the best all-rounder off-road running ...

The Arizona Republic's climate reporter, Joan Meiners, is biking the length of the Arizona Trail to document changes to landscapes and communities.

Former federal employees are finding creative ways to cope with job loss and uncertainty — from starting businesses to hiking ...

Eager to spend some time in the great outdoors? We asked our Nat Geo Travel Facebook fans to share their favorite trails, and their responses will have you lacing up your hiking boots before you know ...