Frame for snow covering, interior view.

Frame for snow covering, interior view.

Frame for snow covering, interior view.

View of a shed of scrap materials.

Houghton, Michigan, July 1889.

Locomotive in log snowshed corridor.

Camp Barn at Thomas Foster's.

Snow sheds, Union Pacific R.R. - Exterior.

Interior of snow shed, Summit Station, Sierra Nevada Mountains, C.P.R.R.

Interior view of snow sheds.

Interior of the snow sheds on the C.P.R.R.

Section of the snow sheds around Donner Peak.

Donner Peak, 9000 feet above the level of the sea. Snow sheds along the cliff, 1500 ft. above the valley.

Donner Peak, 9000 feet above the level of the sea. Snow sheds along the cliff, 1500 ft. above the valley.

Snow sheds on the Pacific R.R.

Snow sheds on the Pacific R.R.

Donner Lake and snow sheds in California.

Main Street, Cisco, Placer Co.

Winter at Dutch Flat.