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-   -   Stream bottom elements (http://www.flyfishingforum.com/flytalk4/showthread.php?t=14579)

John Desjardins 02-09-2004 03:11 PM

Stream bottom elements
 
Every once in a while something unusual crosses my desk. Todays link is a survey by the USGS of the elements in sludge from streams accross the country.

I dont know what fishing/environment related use can be made of this data but, thought some might have interest in it.

The National Geochemical Survey - Database and Documentation


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