Fact Sheet 2007–3008
AbstractThe U.S. Geological Survey (USGS) is developing The National Map to be a seamless, continually maintained, and nationally consistent set of online, public domain, framework geographic information databases. The National Map will serve as a foundation for integrating, sharing, and using data easily and consistently. The data will be the source of revised paper topographic maps. The National Map includes digital orthorectified imagery; elevation data; vector data for hydrography, transportation, boundary, and structure features; geographic names; and land cover information. |
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U.S. Geological Survey, 2007, The National Map—orthoimagery layer: U.S. Geological Survey Fact Sheet 2007ndash;3008, 2 p., available only online at https://pubs.usgs.gov/fs/2007/3008/.