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United States Geological Survey

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United States Geological Survey, (USGS) är den amerikanska motsvarigheten till svenska Lantmäteriet och Sveriges geologiska undersökning. Den grundads 1879.[1] och håller till i Reston i Virginia.

  1. ^ ”Establishment of the US Geological Survey, USGS Circular 1050”. United States Geological Survery. http://pubs.usgs.gov/circ/c1050/establish.htm. Läst 5 augusti 2014. 

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