Green River Cliffs, Wyoming

Point Lobos, Monterey, California

The Grand Canyon of the Yellowstone

Grand Canyon of the Colorado River

Cliffs of the Upper Colorado River, Wyoming Territory

The Juniata, Evening

Golden Gate, Yellowstone National Park

A View of Venice

Mist in Kanab Canyon, Utah

Grand Canyon of Arizona at Sunset

The Much Resounding Sea

Mountain of the Holy Cross

Green River from the Ferry, Wyoming Territory

Cliffs of the Rio Virgin, South Utah

Italian Mountain Scene with River and a Building to the left

Canyon of the Rio Virgin, South Utah

Looking up the Trail at Bright Angel, Grand Canyon, Arizona

Conwy Castle, North Wales

The Cañon of the Belle Fourche, Wyoming

The Tetons, Idaho

Port Neuf Canyon, Idaho

Yellowstone Below the Falls

Green River, Wyoming

Rocky Valley of Mosta, Malta