Train trestle outside the train station in Denali National Park Alaska
Rose Lake in the Hocking Hills State Park on a foggy morning in the fall.
Bull elk bugling in Hayden Valley in Yellowstone National Park Wyoming.
American Bison posing in early morning light in Yellowstone National Park Wyoming.
Grizzly bear posing before entering the forest in Lake Clark National Park in Alaska.
Aurora photographed on tundra in Wapusk National Park in Manitoba, Canada.
Aurora in night sky above Chena Hot Springs near Fairbanks Alaska.
Herd of elephants running toward a water hole in Etosha National Park Namibia.