The SN in Chico is the second most beautiful brewery I have been to, and that total number of breweries is large. Most beautiful, SN Mills River NC, as you would expect for a clean sheet and large budget.
I did Beer Camp in Chico back in 2009. I've toured Mills River, both the free guided tour and the Beer Geek tour.
A really fun time was Oktoberfest in Chico, doubt they will have it this year.