Columbia Island is a island located in Westchester County, New York. It appears on the Mount Vernon USGS 7.5-minute topographic quadrangle. The nearest populated place is Isle of San Souci, approximately 1.6 miles to the N.
Westchester County · New York
Columbia Island is a island located in Westchester County, New York. It appears on the Mount Vernon USGS 7.5-minute topographic quadrangle. The nearest populated place is Isle of San Souci, approximately 1.6 miles to the N.