The Cape Ann Light Station on Thacher Island, off Cape Ann in Rockport, Massachusetts, is nationally significant as the last light station to be established under colonial rule and the first station in the United States to mark a navigational hazard rather than a harbor entrance.

Location: Cape Ann, Massachusetts
Coordinates: 42°38′13″N 70°34′30″W
Constructed: 1771
Foundation: Granite (surface rock)
Construction: Cut granite
Tower height: 124 feet (38 m)
Tower shape: Conical
Markings: Natural, unpainted granite
First lit: 1861 (current structure)
Automated: 1979
Focal height: 166 feet (51 m)
Lens: 1st order Fresnel lens (original), VRB-25 (current)
Range: 17 nautical miles (31 km; 20 mi)
Characteristic: Flash Red 5s
Fog signal HORN: 2 every 60s

Visited this light on August 20 2021.

The lighthouses are owned by the Town of Rockport and managed by Thacher Island Association. Grounds open, visitor center in head keeper's dwelling, north tower open.

I did not get a good view of these lights. It was a very hazy morning .

Added to the National Register of Historic Places on October 7 1971. Also recognized as a National Historic Landmark on January 3 2001

Access: From the water is best