Great Island is a island located in Suffolk County, New York. It appears on the Amityville USGS 7.5-minute topographic quadrangle. The nearest populated place is Gilgo Beach, approximately 1.2 miles to the S.
Suffolk County · New York
Great Island is a island located in Suffolk County, New York. It appears on the Amityville USGS 7.5-minute topographic quadrangle. The nearest populated place is Gilgo Beach, approximately 1.2 miles to the S.