I no longer maintain a complete schedule of relevant PNW track days on this page. I’m lazy now and, realistically, there are only a handful of events that I would personally choose to attend. And even then, with about 10 identified events that looked possible in 2015, I attended only two. I got to 5 in 2016. Visit MotorsportReg for the most comprehensive overall listing.
I’ve included a public Google calendar here with options I’m considering for the coming year. The list is always evolving. Comment/leave a note here. Maybe we can connect at the track!