Rockport is a town in Essex County, Massachusetts, United States. Rockport is located approximately 25 miles northeast of Boston at the tip of the Cape Ann peninsula. It is directly east of Gloucester, Massachusetts and surrounded on three sides by the Atlantic Ocean. The area that is now Rockport was simply an uninhabited part of Gloucester for more than 100 years, and was primarily used as a source of timberespecially pine for shipbuilding. The area around Cape Ann was also one of the best fishing grounds in New England. In 1743 a dock was built at Rockport harbor on Sandy Bay and was used for both timber and fishing. By the beginning of the 19th century, the first granite quarries were developed, and by the 1830s, Rockport granite was being shipped to cities and towns throughout the East Coast of the United States.