@online {370, title = {National Geodetic Survey Data Explorer}, abstract = {

Use this web map service to find locations of all NCGS geodetic and survey benchmarks. \ A great resource!

}, keywords = {$\#$MapsDataPublications, $\#$Misc, $\#$Topo, benchmarks, coast, geodesy, geodetic, survey, surveying, topography}, url = {http://www.ngs.noaa.gov/NGSDataExplorer/} }