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National Geochemical Survey database

National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km. Select and Download here

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legend for Federal lands
legend for streams
legend for lakes
legend for roads

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URL: http://mrdata.usgs.gov/geochemistry/ngs.html
Page Contact Information: Peter Schweitzer
Page Last Modified: Thursday, 30-May-2013 14:22:11 MDT