Salem Maritime National Historic Site, Massachusetts: Shoreline Map
Cantor J. 2015. Salem Maritime National Historic Site, Massachusetts: Shoreline Map. Ocean & Coastal Resources Branch, NRSS. Fort Collins, CO
Data Sources: Shoreline: NOAA ENC Data http://www.nauticalcharts.noaa.gov/csdl/ctp/encdirect_new.htm Bathymetry: NOS Hydrographic Survey Data http://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html Imagery: USGS Color Ortho Imagery, 2013 http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/colororthos2013.html