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Mounting the Expedition
Photograph by Chris Johns

Mustangs roam Montana's Pryor Mountain Wild Horse Range, an area named for expedition member Nathaniel Pryor. Lewis and Clark needed horses to transport the expedition across the rugged Bitterroot Range. They had originally hired Sacagawea to help them horse-trade with her Shoshone kin.

Camera: Nikon F100
Film Type: Fujichrome Provia 100
Lens: 400mm F28
Speed and F-Stop: 1/500 @ f/11

Weather Conditions: Stormy
Time of Day: Late afternoon
Lighting Techniques: Natural light