Posters, handbills, tickets, and a bumper sticker for music concerts and events held in Portland, Oregon, from about 1967 to 1970. Materials were collected by Portland resident Jason Blumklotz. Most materials relate specifically to psychedelic rock concerts and the 1970 Portland Music and Art Fair. Groups and artists represented include the Grateful Dead, Canned Heat, Steve Miller Band, Steppenwolf, and B. B. King.