This quarry was "on Deer Isle, on Settlement Hill east of Webb Cove, 2 miles northeast of Stonington." The owner was the Rodgers Granite corporation, 271 West 125th Street in New York, although at the time of the report, the quarry was being leased by the George A. Fuller Co. of New York.. The granite in the quarry was reportedly a medium-gray with a slightly lavender tint, blotched with a cream white and a coarse texture.
The Settlement Quarry opened in 1900. Two quarries were measured in 1905: one was located near the tope of the hill and measured 500 by 400 feet and had a depth from 10 to 18 feet; the other was on the west side and measured 600 by 60 feet and had a depth up to 14 feet. Transport of the granite was by locomotive and 2,500 feet of track. The cutting shed was 1,000 feet from the upper quarry and 600 feet from the cutting shed to the wharf.
The granite from the Settlement Quarry was used in massive construction. The granite was used in the following examples: the dry dock at Norfolk, Virginia; the base and approach for the addition to Bancroft Hall, United States Naval Academy, Annapolis, Maryland; the fish pier at Boston, Massachusetts; the sea wall at Providence, Rhode Island; the retaining wall at Riverside Drive (138th Street to the end); the Brooklyn and Manhattan approaches and piers to the Manhattan Bridge in New York. At the time of the report the quarry was supplying part of the granite for the new courthouse in New York.