Stream bottom elements [Archive] - Fly Fishing Forum

: Stream bottom elements

John Desjardins
02-09-2004, 03:11 PM
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 (