You searched for: Author I.M. Systems Group Remove constraint Author: I.M. Systems Group Subject Harbors--Traffic control Remove constraint Subject: Harbors--Traffic control Place Massachusetts Remove constraint Place: Massachusetts Data type Polygon Remove constraint Data type: Polygon Format Shapefile Remove constraint Format: Shapefile Year 2012 Remove constraint Year: 2012
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.