Freshwater Mussels Of The WillametteBy Ed Jahn (OPB)Feb. 15, 2018 6:49 p.m.THANKS TO OUR SPONSOR:Become a SponsorTHANKS TO OUR SPONSOR:Become a SponsorTHANKS TO OUR SPONSOR:Become a SponsorOPB’s First Look newsletterSign up to get important news and culture from around the Northwest, delivered to your inbox six days a week.Sign Up