The National Map, elevation.

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Bibliographic Details
Imprint:[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2009]
Description:4 unnumbered pages : digital, PDF file.
Series:Fact sheet ; 2009-3053
Fact sheet (Geological Survey (U.S.)) ; 2009-3053.
Subject:United States -- Altitudes -- Data processing.
United States -- Maps.
Topographic maps.
Format: E-Resource U.S. Federal Government Document Book
URL for this record:
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Other authors / contributors:Geological Survey (U.S.). National Geospatial Program Office.
Notes:Title from title screen (viewed on July 15, 2009).
At head of title: National Geospatial Program Office.
"July 2009."
Includes bibliographical references (page [4]).
Mode of access: Internet from the USGS web site. Address as of 7/15/09:; current access available via PURL.
GPO item no.:0621-L (online) classification:I 19.127:2009-3053