Portsmouth Harbor Light - Portsmouth, NH
Portsmouth Harbor Light, the station was established in 1771. The present lighthouse was built in 1878 and it was automated in 1960. Construction material: Cast iron. Height of tower: 48 feet; Height of focal plane: 52 feet. Optic: Fourth order Fresnel lens (1854). Characteristic: Fixed green (produced by green acrylic cylinder around ...
Updated: Jul 17, 2008 8:29pm PST
