Mark Island is a island located in Knox County, Maine. It appears on the North Haven West USGS 7.5-minute topographic quadrangle. The nearest populated place is Rockport, approximately 4.7 miles to the W.
Knox County · Maine
Mark Island is a island located in Knox County, Maine. It appears on the North Haven West USGS 7.5-minute topographic quadrangle. The nearest populated place is Rockport, approximately 4.7 miles to the W.