Just wanted to add that if you're looking for a guidebook to the area, Tim Johnson's (newer) book is great, and much easier to figure out. The Embeck guide is historically significant (and groundbreaking for sure) but super hard to digest.
Also, if youre like me coming from CO, it a bit of a shock the lack of boaters up here. Everyone packrafts. (and I get it now, after looking at the approaches to the put-ins) There's one kayak shop in the entire state, and it's run out of a garage. (super cool folks)