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Start Over Theme Transportation Creator I.M. Systems Group Bounding Box -180 -89.81531 180 89.456192

1. North Atlantic Maintained Channels, 2013

Datasets Stanford University Public content
2013. I.M. Systems Group. This polygon shapefile represents maintained navigation channels in the North Atlantic United States. The condition of navigation channels is repor... United States. National Oceanic and Atmospheric Administration.

2. Aids to Navigation, Northeast United States, 2012

Datasets Stanford University Public content
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.).

3. Marine Transportation, Northeast United States, 2012

Datasets Stanford University Public content
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.