You searched for: Author I.M. Systems Group Remove constraint Author: I.M. Systems Group Subject Oceans Remove constraint Subject: Oceans Subject Aids to navigation Remove constraint Subject: Aids to navigation Place Massachusetts Remove constraint Place: Massachusetts Place Cobscook Bay (Me.) Remove constraint Place: Cobscook Bay (Me.) Place Cape Cod Bay (Mass.) Remove constraint Place: Cape Cod Bay (Mass.) Place Atlantic Ocean Remove constraint Place: Atlantic Ocean Data type Point Remove constraint Data type: Point
2012. I.M. Systems Group. This point shapefile represents marine aids to navigation in the Northeastern United States. The Coast Guard maintains systems of marine aids to na... Coastal Services Center (U.S.).