You searched for: Access Public Remove constraint Access: Public Subject Oceans Remove constraint Subject: Oceans Subject Harbors--Traffic control Remove constraint Subject: Harbors--Traffic control Place Massachusetts Remove constraint Place: Massachusetts Place Boston Harbor (Mass.) Remove constraint Place: Boston Harbor (Mass.)
2012. I.M. Systems Group. This polygon shapefile represents the geographic location and identity of designated areas used to manage vessel traffic in the northeast United St... United States. National Oceanic and Atmospheric Administration.