Search Results
2007. National Atlas of the United States. This polygon shapefile portrays a selected set of information that was collected for the 2007 Census of Agriculture by the National Agricultural St... National Atlas of the United States.
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.).
2012. Geological Survey (U.S.). This point shapefile includes airports in the United States, Puerto Rico and the U.S. Virgin Islands. The data were derived from an extract of the ... Geological Survey (U.S.).
2013. Baldwin Group. This polygon shapefile represents anchorages in the Northeastern United States. The areas described are designated as special anchorage areas for p... Coastal Services Center (U.S.).
2013. SeaPlan. This polygon shapefile represents aquaculture regions in the northeastern United States. Aquaculture in the northeast region is a diverse, vibrant ... Northeast Ocean Data.
2005. King, Philip B., Arndt, Raymond E., Schruben, Paul G., Bawiec, Walter J., and Beikman, Helen M. This line shapefile shows the outlines of major calderas and impact structures in the United States. This layer is part of the Geologic Map of the ... Geological Survey (U.S.).
2004. United States. Forest Service. This polygon shapefile is commonly called Bailey's ecoregions and shows ecosystems of regional extent in the United States, Puerto Rico, and the U.... National Atlas of the United States.
2001. National Atlas of the United States. The Bathymetric Shaded Relief of North America map layer shows depth ranges using colors, with relief enhanced by shading. The image was derived fr... National Atlas of the United States.
2001. National Atlas of the United States. The Bathymetry of North America map layer shows depth ranges using colors. The image was derived from the National Geophysical Data Center's ETOPO2... National Atlas of the United States.
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, and 2014. 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.