I found this report done by the Human Rights Clinic at Harvard Law School. It talks about the impact of mining on First Nation communities, in this case specifically regarding the Takla Lake Nation in northern British Columbia.
I have uploaded both the full PDF file (287 pages) AND the report's summary (12 pages).
I got the full report from the Harvard Law website at: www.law.harvard.edu/news/spotlight/human-rights/mining-effects-on-takla.html
I took the summary from the First Nations Summit's very interesting website at:www.fns.bc.ca