Boundaries of the United States and the several States

Overview of attention for article published in this source, January 1976

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RT @USGS: [PUB] – ‘Classic’ USGS Publication - Boundaries of the United States and the several States Professional Paper 909 (1976) https:/…

RT @johnedwinmason: This map. Words like "purchased," "annexed," and "ceded" hide so much history. Most of it very ugly.

RT @johnedwinmason: This map. Words like "purchased," "annexed," and "ceded" hide so much history. Most of it very ugly.

RT @johnedwinmason: This map. Words like "purchased," "annexed," and "ceded" hide so much history. Most of it very ugly.

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