Name and Location

Cape Ann Light (Twin Lights) is located on Thacher's Island, off the coast of Rockport, Massachusetts, USA.

Construction and History

The Cape Ann Light (Twin Lights) was constructed in two phases: the North Tower was built in 1840, followed by the South Tower in 1895. The original first-order Fresnel lens from the North Tower was destroyed due to damage, leaving only pieces remaining at the Sandy Bay Historical Society and at the brick assistant keepers dwelling.

Architecture and Materials

The lighthouse is an excellent example of Victorian-era architecture, blending functionality with aesthetic appeal.

Light and Navigation

The lighthouse's light range extends for 16 kilometers (10 miles), with a characteristic pattern of Fl(3)W.15s, meaning three flashes every 15 seconds. The focal height is approximately 17.1 meters (56 feet) above sea level.

Accessibility and Visiting

Although no longer an active aid to navigation, the lighthouse now serves as a national wildlife refuge. Visitors can access the grounds for self-guided tours, with guided tours available upon request.

Notable Views and Landscape

The lighthouse offers breathtaking views of the surrounding coastline, with a unique perspective on the island's natural beauty. Visitors can explore the nearby trails, beaches, and wildlife areas for an immersive experience.

Anecdotes and Folklore

Technical and Operational Details

The North Tower stands at a height of 37.8 meters (124 feet), while the South Tower reaches a height of approximately 24.4 meters (80 feet).

Further Information

• https://en.wikipedia.org/wiki/Cape_Ann_Light_Station">Wikipedia: Cape Ann Light Station
• http://mass.gov/mgis/lighthouses.htm">Massachusetts Office of Geographic and Environmental Information (MassGIS)
• https://www.nps.gov/subjects/nationalregister/index.htm">National Register of Historic Places: 71000355