Signal Mountain and Mt. Moran: Grand Teton National Park, September 2003

Just Another Rock in the Wall: Theodore Roosevelt National Park, North Unit, September 2003 A series of harder rocks sticks out of this formation. These deposits, known as concretions, where formed when erosion stripped away the outer layer of softer material, revealing the denser material. Erosion then transforms these deposits into round shapes.

heilemann:

The Batmobile.

Badlands View: Badlands National Park, September 2003

Badlands Up Close and Personal: Badlands National Park, September 2003

Badlands Landscape: Badlands National Park, September 2003

Great Fountain Geyser Reflections: Yellowstone National Park, September 2003 Clouds are reflected in the surface of Great Fountain Geyser.

Swimming in Jenny Lake: Grand Teton National Park, September 2003 I went for a swim in Jenny Lake. Boy, was it cold!

Bison Grazing: Grand Teton National Park, September 2003

Badlands on the Horizon: Badlands National Park, September 2003