Obsidian Cliff Road.

Grand Cañon, Yellowstone River.

Evergreen lake.

Hotel Plateau, Yellowstone National Park.

Gloria in Perpetuum, Grand Canyon of the Yellowstone.

Firehole River, Yellowstone National Park.

Great Falls, Yellowstone National Park.

A More enchanting wonder nature never knew, Grand Canyon of the Yellowstone National Park, Wyo.

Jupiter Terrace, Yellowstone Park, Wyo. U.S.A.

Grand Canyon of the Yellowstone, Yellowstone Park, Wyo.

Herd of American Bison, browsing in safety, Yellowstone National Park, Wyo.

Bear feeding, Yellowstone National Park, Wyo.

A More enchanting wonder nature never knew, Grand Canyon of the Yellowstone National Park, Wyo.

A Commotion in the Devil's Ink Pot. A Moment of eruption, Yellowstone National Park, Wyo.

Lordly Monarch of the Western Wilds. Snap shot of Wild Elk.

Jupiter Terrace, Yellowstone Park, Wyo. U.S.A.

Looking out from the 'Golden Gate,' Yellowstone Park, Wyoming.

Old Faithful Geyser, Yellowstone National Park.

Minerva Terrace, Yellowstone National Park, Wyo.

Keppler Cascades, Yellowstone National Park, U.S.A.

Great Falls and Grand Canyon of the Yellowstone, Yellowstone National Park, Wyo.

Golden Gate, Yellowstone Park, Wyo.

Great Falls and Grand Canyon of the Yellowstone, Yellowstone National Park, Wyo.

Point 'Lookout' and Great Falls, Grand Canyon of the Yellowstone, Yellowstone National Park.

Golden Gate, Yellowstone National Park.

On the Trail, Yellowstone Park.

Hot Mineral rocks of the Yellowstone Region.

The Grand Falls, Yellowstone River, Yellowstone National Park.

Golden Gate, westward, Yellowstone National Park.

The Golden Gate and New Concrete Viaduct, costing $10,000, Yellowstone National Park.