This image show
s an “adit” or mine opening, at Blackbird Mine, Lemhi County, Idaho, c. 1994-1998. The water that can seep out of mine openings often is very acidic and can be contaminated with zinc, copper, or arsenic.


Revised December 11, 2009
| Questions, Comments? Contact Us | Report
Error | Disclaimer | About
the Site | User Survey
Web Site Owner: National Ocean Service | National Oceanic and Atmospheric
Administration |
Department of Commerce | USA.gov
http://oceanservice.noaa.gov/education/tutorial_pollution/media/supp_pol08c.html