The Lovells Island Range Lights were range lights

Leading lights

Leading lights are a pair of light beacons, used in navigation to indicate a safe passage for vessels entering a shallow or dangerous channel; and may also be used for position fixing. At night, the lights are a form of leading line that can be used for safe navigation...

 on Lovells Island

Lovells Island

Lovells Island, or Lovell's Island, is a island in the Boston Harbor Islands National Recreation Area, in Massachusetts. The island is across The Narrows from Georges Island and some offshore of downtown Boston. It is named after Captain William Lovell, who was an early settler of nearby Dorchester...

 in Boston Harbor

Boston

Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States. The largest city in New England, Boston is regarded as the unofficial "Capital of New England" for its economic and cultural impact on the entire New England region. The city proper had...

, Massachusetts

Massachusetts

The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...

. They were built in 1903 to help vessels coming into what is now called "South Channel". As the North Channel was dredged deeper, the South Channel was less used and they were removed in 1939 to make room for the expansion of Fort Standish

Fort Standish

Fort Standish was a coastal fort dating to the Endicott Period located on Lovell's Island in Massachusetts. Named after Myles Standish, the fort would serve to host up to 7 batteries throughout its history....

. The oil shed from the lights remains today.

They were 400 feet (121.9 m) apart on a magnetic bearing of 228°, with a seven foot walkway connecting them.