Whaleback Light

The Whaleback light is located at the northeast side of Portsmouth Harbor, although it is in Maine waters.  The 48-foot stone tower was completed in 1831, and a fourth-order Fresnel lens installed in 1855.  1859 saw a fog bell added.  

In 1872, a new 75-foot tower was built of granite blocks.  Part of the old tower still remains.  The light was automated in 1964, and the Fresnel lens was replaced by a modern optic.

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