Zone IIIA includes areas of Lincolnville not incorporated into Zones IIB, IIC, and IID. Lincolnville was established by African-Americans after the Civil War and is a vibrant component of St. Augustine’s multicultural history. This subzone also includes 1700s British defensive fortifications and 1800s urban agricultural enterprises.
Zone IIIB includes deposits associated with lookouts and lighthouses that were both beacons and guardians of St. Augustine’s harbor. This subzone also includes coquina outcrops that have been quarried since the late 1670s.