Tulelake, CaliforniaFormed by half a million years of volcanic activity, Lava Beds National Monument contains the highest ...

A new book traces how the American prairie was nearly destroyed and why its return is so necessary for our future.

This Nebraska state park in the beautiful heart of the Midwest is full of alluring outdoor activities and beautiful views.

Guadalupe Mountains National Parks may be one of the most remote in the U.S., but it's also one of the most unique.