Original 1st printing 24 x 18" concert/event poster for the second Sky River Festival, held in Tenino WA from 8/30-9/1/1969.

 Designer unknown/not credited (photo by Ben Spicer), image is featured in the Art of Rock on page 258 (plate 3.8).

 No artists are listed, but another poster from this event lists appearances by Alice Stuart, Anonymous Artists of America, Big Mama Mae Thornton, Black Snake, Bluebird, Chicago Transit Authority, Cleanliness & Godliness Skiffle Band, Collectors, Congress of Wonders, Country Joe & the Fish, Country Weather, Crome Syrcus, Dan Hick & His Hot Licks, Dick Gregory, Doctor Humbead's New Tranquility String Band, Elyse Weinberg, Floating Bridge, Flying Burrito Brothers (with Gram Parsons), Mississippi Fred McDowell, Frumious Bandersnatch, Grapefruit, Guitar Shorty, James Cotton Blues Band, Kaleidoscope, Los Flamencos Santa Lucia, Magic Sam, Mother Tucker's Yellow Duck, New Lost City Ramblers, New York Rock & Roll Ensemble, Sons of Champlin, Steve Miller and Quicksilver Messenger Service. 

 Medium-thick flat index stock poster is in very good to excellent (B/B+ to B+) condition; there is a 4" diagonal bend in the lower left corner, along with a touch of edge curling, a few tiny pressure creases/edge dings scattered around the outer margin area, a couple of tiny corner-tip bumps/bends, a few soft pin-prick surface spots, thin stress bends and light smudges hiding within the image area and a touch of waviness to the top margin, otherwise it is a SUPERB-looking example of the semi-elusive "mud people" Sky River poster.

 Check out VERY COOL Super-8 footage of the event (shot by a Festival attendee) HERE:

https://www.youtube.com/watch?v=KmPoJdu8lSs