Located in Jamestown, Rhode Island, the third oldest lighthouse in America.  The present granite lighthouse was constructed in 1856. Known for many years as the Newport Light, the Beavertail beacon was first to witness the triangular trade which contributed to Newport's prominence before the Revolution.  The light itself remains an active aid to navigation and is maintained by the Coast Guard. The assistant keeper's house, built in 1898, was leased to the Rhode Island Parks Association in the late 1980s and has been converted into the Beavertail Lighthouse Museum.