Plant ID help - salmonberry (Rubus spectabilis)

It has tiny thorns on the stem. It is growing under a large for tree. There are a lot of these plants

Hi Dan! This almost looks like Salmonberry based on your Northwest location - Rubus spectabilis which is a NW native you may be familiar with. Otherwise I'd venture it's a member of the Rubus (raspberry/blackberry) Genus. Do you have any other guesses?

Thank you Pete.  Rubus spectabilis looks like a winner!  I asked a friend who lives nearby and he said it was some kind of bramble berry.  

Definitely Rubus....enjoy dem berries!

You wont get any this year of course, but allow the stalks to grow and next year they will branch out and you will get berries. I always cut the canes just in time so the tips do not touch the ground and root or they will take over the whole area.