2,000 Miles of Ocean Seafloor and Coastline Imagery Available from the USGS
The U.S. Geological Survey offers 2,000 miles worth of coastlines and seafloor imagery surrounding the United States to the public to view.
Enhancing Shorelines with Vector-Based Coastal Vignettes
Creating coastal vignettes using GIS or mapping software is a cartographic technique that adds depth to open water on a map.