Mt. Jefferson and Mt. Washington Carriage Road.

Mt. Jefferson and Mt. Washington Carriage Road.

Gulf of Mexico, Mt. Washington.

Junction of the Montreal, & Mt. Washington Rail-roads.

Sunshine, Mt. Washington.

Summit House, Mt. Washington, Winter.

Mt. Washington Signal Station.

Mt. Washington Signal Station.

Mt. Washington Signal Station.

Railway Train and Summit House, Mt. Washington.

Summit of Mt. Washington.

Summit of Mt. Washington.

Ascension of Mt. Washington in Winter.

The Great Tresle, Mt. Washington Railway.

Great Tresle, Mt. Washington Railway.

Stage-Coach on the way to the Mountains.

Train leaving the Depot, Mt. Washington Railway.

Mt. Jefferson, from Mt. Washington Railway.

Mt. Jefferson, from Mt. Washington Railway.

Mt. Clay, from Mt. Washington Railway.

Government Signal Station, Mt. Washington.

Government Signal Station, Mt. Washington.

Government Signal Station, Mt. Washington.

Cloud View on Mt. Washington.

Frost work, Mt. Washington.

Frost work, Mt. Washington.

Summit of Mt. Washington, Winter.

Summit of Mt. Washington, Winter.

Observers taking water, Mt. Washington Railroad Tank.

U.S. Observatory, Mt. Washington.