Some great books out there, plus there's a forum called Cascade Mycological society. There are some people on there that have forgotten more then i will ever know about shrooms. If you post pictures they will be able to tell you what it is, well as sure as you can be from a picture. Most of the people that post are from Corvallis or Eugene, nice group of people.

I mostly hunt chanterrels, morels, king boletes, matsutakes and Oregon white truffles