Yellowstone

Yellowstone, Wyoming

A group of riders on horseback are on their way back to the ranch in Yellowstone National Park. August 2001. Un groupe de cavaliers sont sur le chemin du retour vers le ranch dans le Parc National de Yellowstone. Août 2001.

Yellowstone, Wyoming

Wooden walkways allow visitors to closely approach the Grand Prismatic Spring. It is the largest hot spring in the United States, and the third largest in the world. The vivid colors in the spring are the result of pigmented bacteria. July 2001. Des chemins en bois permettent aux visiteurs de s’approcher des sources chaudes de…