What are some excellent brews available only in the Pacific Northwest?

I got a buddy who going to be spending 2 weeks in Washington and asked me for a list of beers that I would like for him to bring back. The only two breweries I know of from the NW is Rogue and Full Sail, and I can buy Rogue in Missouri. I know that Oregon and Washington are regarded as great micro brewing states, so what companies or beers should he have an eye out for?