Black Canyon of the Gunnison National Park has its own dramatic cliffs, gorges, and ancient rock formations. Many travelers ...

Elzada Clover and Lois Jotter conducted a harrowing 43-day trip down the Colorado River in an effort to map the Grand Canyon's flora.

The construction of Glen Canyon Dam near Page, Arizona, filled Glen Canyon and created Lake Powell. Construction was fully ...

The Grand Canyon is a natural wonder boasting many incredible hiking trails, but this one is a particularly dangerous trek ...