Yeah, the blackberries are all over. The black raspberries are a bit harder to find but I really love them. First time I found out about them was when I was out on a solo backpacking hike in the Olympic Mountains and I came across a large patch on the trail that no one was eating. After I setup camp I hiked all the way back to the patch so I could get a bunch--made for a great desert that day! :)
http://nativeplantspnw.com/blackcap-raspberry-rubus-leucodermis/