The upper Blackfoot River in southeastern Idaho receives runoff from 12 large phosphate mines. Waste shales that are removed to access the phosphate ore are highly enriched with selenium, resulting in elevated selenium in runoff from the mine waste dum
Mebane, Christopher A. cmebane@usgs.gov,Mladenka, Greg,Van Every, Lynn,et al. Selenium in the upper Blackfoot River watershed, southeastern Idaho, 2001-12. 2014-01-01.