From Yosemite to Denali, trade summer crowds for a winter wonderland at these breathtaking U.S. national parks.

High in the Rocky Mountains of Colorado, a trickle of water begins a journey that will carve canyons, feed cities, and shape ...

The Republic's climate reporter started her journey on the Arizona Trail with detours that were forced by wildfires and left for volunteers to fix.

Winter transforms America’s national parks into breathtaking wonderlands, far from the crowded summer scenes you might expect ...