Cumberland Head Light - AbsoluteAstronomy.com

Cumberland Head Light is a lighthouse

Lighthouse

A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....

on Lake Champlain

Lake Champlain

Lake Champlain is a natural, freshwater lake in North America, located mainly within the borders of the United States but partially situated across the Canada—United States border in the Canadian province of Quebec.The New York portion of the Champlain Valley includes the eastern portions of...

's Cumberland Bay

Cumberland Head, New York

Cumberland Head is a census-designated place and region of the Town of Plattsburgh in Clinton County, New York, United States. The population was 1,627 at the 2010 census....

in New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

state.

The lighthouse was established in 1838 and the tower was first lit in 1868. The lighthouse was deactivated in 1934. The foundation of the lighthouse is concrete and limestone and the lighthouse itself is made out of limestone. The shape of the tower is conical. The original lens was a fourth order Fresnel lens

Fresnel lens

A Fresnel lens is a type of lens originally developed by French physicist Augustin-Jean Fresnel for lighthouses.The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design...

installed in 1856.

Further reading