You searched for: Subject Oceans Remove constraint Subject: Oceans Subject Transportation Remove constraint Subject: Transportation Place Massachusetts Remove constraint Place: Massachusetts 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.).
1996. Applied Science Associates. This point shapefile represents boat launching ramps in the northeastern United States. Boat launches are state, municipal, local, or privately own... Northeast Ocean Data.
2012. SeaPlan. The Northeast Recreational Boater Activities Layer depicts activity points plotted by participants in the 2012 Northeast Recreational Boater Survey... Northeast Ocean Data.