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2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile represents railroads in North America only. The “basic” railroads at 10m scale are from Commission for Environmental Cooper... North American Cartographic Information Society.
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile represents roads in North America only, including preliminary scale ranking and full list of attributes. The “basic” roads ... North American Cartographic Information Society.
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.
2012. United States. National Oceanic and Atmospheric Administration. This raster dataset represents density of passenger vessel traffic in 2012 from vessels with Automatic Identification System (AIS) transponders in ... United States. National Oceanic and Atmospheric Administration.
2011. United States. National Oceanic and Atmospheric Administration. This raster dataset represents density of tanker vessel traffic in 2011 from vessels with Automatic Identification System (AIS) transponders in 100... United States. National Oceanic and Atmospheric Administration.
2012. United States. National Oceanic and Atmospheric Administration. This raster dataset represents density of tanker vessel traffic in 2012 from vessels with Automatic Identification System (AIS) transponders in 100... United States. National Oceanic and Atmospheric Administration.
2012. United States. National Oceanic and Atmospheric Administration. This raster dataset represents density of vessel traffic in 2012 from vessels with Automatic Identification System (AIS) transponders in 100 meter ... United States. National Oceanic and Atmospheric Administration.
2012. United States. National Oceanic and Atmospheric Administration. This raster dataset represents density of Tug and tow vessel traffic in 2012 from vessels with Automatic Identification System (AIS) transponders i... United States. National Oceanic and Atmospheric Administration.
2014. California. Department of Transportation. This line shapefile represents the locations of capital improvement projects programmed by the State Transportation Improvement Program (STIP) that... California. Department of Transportation.
2014. California. Department of Transportation. This point shapefile represents the locations of capital improvement projects programmed by the State Transportation Improvement Program (STIP) tha... California. Department of Transportation.