Rock formations and natural arches from Arches National Park, Utah.

The Smokey Mountains National Park showcases the beautiful mountains, valleys, and streams of the Appalachian area.

A secluded valley in the Smokey Mountains, Cades Cove is a haven for wildlife of all sorts and a home to the remnants of an early Appalachian settlement.

The White Sands of New Mexico, composed of acres of gypsum sand in the Chihuahuan Desert.

The Saguaro National Park, in Arizona.

Joshua Tree National Park, in the Mojave Desert of Southern California.

Photos from the Mojave Desert National Preserve of Southern California.

Bryce Canyon National Park, full of rocky hoodoo formations and sweeping overlooks.

This National Park in Arizona contains one of the largest collections of petrified wood in the world.

A collection of this and that - photos that do not fit into the other galleries

Photos (mostly of architecture) from Washington, D.C.

Country and nature scenes, most from northern Illinois.

Yellowstone, full of hot springs, geysers, and other thermal features, and the nearby Grand Teton National Park.