i have had a very ahrd time finding info. so im only assuming others may be having problems as well. anyways here is what i have dug up regarding Amanita muscaria, especially for BC.

www.for.gov.bc.ca/rni/research/Date_Cree...Amanita_muscaria.pdf
Above came from this. really good pictures of various mushrooms.
www.for.gov.bc.ca/rni/research/Date_Cree...able/Mycorrhizae.htm
www.for.gov.bc.ca/hfd/pubs/Docs/Wp/Wp28.pdf good info about mushroms in BC. Amanitas on pg. 36 unfortunatly not much, but lots on other mushrooms.
www.sfp.forprod.vt.edu/pubs/ntfp_bc.pdf gov considers them to be possible candidate for medicinal use and possible future sale pg 42-47, alnog with many others.

anyway not a lot about its uses or places to find. but i found them intresting reads.

if you got some links id live to see some. not so much the use of, but the growth and habitat of and along those lines.

peace