Among the Sierra Nevada, California

Lake Lucerne

Rocky Mountain Landscape

A Storm in the Rocky Mountains, Mt. Rosalie

Looking Down Yosemite Valley, California

Yellowstone Falls

The Rocky Mountains, Lander's Peak

Puget Sound on the Pacific Coast

Sierra Nevada Morning

Mount Corcoran

The Last of the Buffalo

Buffalo Trail: The Impending Storm

Switzerland--Near Valery

Italian Landscape with Mountains and a River

Landscape in the Roman Campagna

Mountain landscape

Giant Mountains Landscape with Rising Fog

View of the Pyrenees

Mountains

In the High Mountains

Landscape

Penmanmawr

The Pyrenees, the Peak of the Midi de Bigorre

View over Hallingdal