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Date: 2014-01-31 03:31:44Temperate grasslands savannas and shrublands Prairies Smoky Hills Ecoregions Tallgrass prairie Shortgrass prairie Great Plains Andropogon gerardii Sand Hills Flora of the United States Geography of the United States Physical geography | Draft Supplemental EIS for the Keystone XL ProjectAdd to Reading ListSource URL: keystonepipeline-xl.state.govDownload Document from Source WebsiteFile Size: 1,95 MBShare Document on Facebook |