Grand Canyon

Rose Torphy is the oldest-ever junior park ranger at the Grand Canyon, and a vocal advocate for the park's beauty.

America's mid-century uranium boom changed the face of the West. Meet the man at the center of its secret afterlife.

Sjors Horstman has spent the last 30 years of his life at the bottom of the Grand Canyon as a volunteer for the National Park Service—one of the longest-serving volunteers in NPS history.

Five landmarks in the American Southwest illustrate the limits of engineering the environment to human favor.

David Brower has slipped into semi-obscurity over the years, but he deserves a place in the pantheon of environmental heroes.