USA - Chicago Harbor Lighthouse

The Chicago Harbor Lighthouse is an automated active lighthouse, and stands at the end of the northern breakwater protecting the Chicago Harbor, to the east of Navy Pier and the mouth of the Chicago River.

Location	Chicago, Illinois
Year first constructed	1893, moved 1919
Year first lit	1893
Automated	1979
Foundation	Rubble stone with concrete pier
Construction	Brick, cast iron and glass
Tower shape	Cylindrical base/Frustum of a cone tower, with attached buildings
Markings / pattern	White, red on roofs
Height	66 ft (20 m) tower
Focal height	Focal plane – 82 feet (25 m)[3][4]
Original lens	Third-order Fresnel
Range	24 miles (39 km)
Characteristic	Fl R 5s floodlighted. Apr. to Dec. Horn: 2 blasts ev 30 s (1 s bl). Operates from April to Dec