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Published byEgbert Roberts Modified over 9 years ago
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North American Regions
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Physiographic Regions Landforms and their formation
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Raised relief map with “upper left” lighting, a cartographic trick.
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Simplified physiographic map, low elevations are shown in green, but are not necessarily forested. Some low-lying regions are deserts.
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Physiographic regions to know printable version on the main page Southern extent of Pleistocene glaciers
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North America’s Major Physiographic Regions Key Atlantic & Gulf Coastal Plains (lime green) Appalachians (Fall Line + 4 sub-divisions: Piedmont, Blue Ridge, Ridge & Valley, and Plateaus) (pale yellow) Mississippi Valley (part of the coastal plain) Interior Highlands (Ozard and Ouchitas) (dark green) Interior Plains & Prairies (pink east of the 20” isohyet) Great Lakes (Canadian Shield and Prairies) Continental Shield (aka Canadian or Laurentian Shield) Great Plains & High Plains (pink west of the 20” isohyet) Arctic Coastal Plain (bright yellow) Rockies (brown) Colorado Plateau (orange-ish) Basin & Range (pale lime green to south) Columbia Plateau (pale lime green to north) Western Mountains & Valleys (Sierra Nevada, Cascades; Sacramento, Willamette, Imperial Valleys) (reddish orange)
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Canadian Shield, north of Lake Huron
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Cretaceous (age of mammals) Inland Seas
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NC Carolina Bays video
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Pangaea Movie 600 million years of Earth History Permian, 225 myaTriassic 200 mya Jurassic 135 myaCretaceous 35 mya Today
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Ozarks to north Ouachita to south Miss Valley to east Great Plains to west
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Plate Tectonics
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Monterrey, CA
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Hollywood 1920 1980
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