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Document copié dans ce site le 25.12.2005.
© 2005 by RB-DESKKART
und SCHIRMER MEDIENSERVICE.
http://www.welt-atlas.de/datenbank/karte.php?reg=99&kat=0&kartenid=0-9013
http://longstrom.com/longstrom/united_states_nice_large.jpg
National Weather Service
October 2004
http://www.crh.noaa.gov/mpx/nwsos.html
The Geographic Face of the Nation--Land Cover
The U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental
Protection Agency,
has produced a land cover dataset for the conterminous United States from 1992
Landsat Thematic Mapper imagery and supplemental data.
The seamless National Land Cover Dataset (NLCD) contains 21 categories of land
cover information suitable for a variety of State and regional applications,
including landscape analysis, land management, and development of nutrient and
pesticide runoff models.
The NLCD is distributed by State as 30-meter resolution raster images in an
Albers Equal-Area map projection.
Online descriptions of the USGS Land Cover Characterization Program and the NLCD
are available at http://landcover.usgs.gov/
Copié 16.2.2005 >
http://geography.usgs.gov/www/products/geoface.html
USA River Map
copié 28.3.2005
http://www.mapsofworld.com/usa/usa-river-map.html
Les États-Unis et la guerre de Sécession
1861-1865
© Guillaume Balavoine 2002-2004 (mai 2004)
mise en ligne septembre 2002
copiée 25.2.2005 >
http://www.atlas-historique.net/1815-1914/cartes/UsaSecession.html
http://www.atlas-historique.net/index.html
http://memory.loc.gov/ammem/cwphtml/tl1861.html
http://memory.loc.gov/ammem/today/jan10.html
U.S. Territorial Acquisitions
Wikipedia
http://en.wikipedia.org/wiki/File:U.S._Territorial_Acquisitions.png
copie 31 January 2009
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