Rocky Mountains

The Ultralight Challenge: 2.0

Pick the gear I can carry on a trip to determine how low one man can go.

America's Best Day Hikes: Rockies

With alpine views, hot springs, wildflowers and wildlife, these hikes in Colorado, Wyoming, Idaho, and Montana offer the best of the Rockies.

See More: Winter Birds

Forget flying south. Learn the secrets of cold-weather survival from three well-adapted birds.