File:USA Territorial Growth 1820.jpg
1970 USGS map
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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Other versions: 
| US growth maps |
| Animated: large · small |
| Years |
| 1775 · 1790 · 1800 · 1810 · 1820 · 1830 · 1840 · 1850 · 1860 · 1870 · 1880 · 1900 · 1920 |
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{{vector version available|new image name}}.
It is recommended to name the SVG file “USA Territorial Growth 1820.svg”—then the template Vector version available (or Vva) does not need the new image name parameter. |
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