Outer Twin Island is a island located in Cumberland County, Maine. It appears on the Naples USGS 7.5-minute topographic quadrangle. The nearest populated place is South Casco, approximately 1.3 miles to the NE.
Cumberland County · Maine
Outer Twin Island is a island located in Cumberland County, Maine. It appears on the Naples USGS 7.5-minute topographic quadrangle. The nearest populated place is South Casco, approximately 1.3 miles to the NE.