Original 1st printing 23 x 17&1/2" concert/event poster for the 1st Sky River Rock Festival and Lighter Than Air Fair, held at Betty Nelson's Organic Strawberry Farm in Sultan, WA, from 8/30-9/2/1968.

 Art by Walt Crowley (Shoddy Art Co.), poster lists appearances by:Allmen Joy, Black Snake, Boogie, Buffy St. Marie, Byron Pope Ensemble, Congress of Wonders, Country Joe & the Fish, Dr. Humbead's New Tranquility String Band, the Flamin' Groovies, Freedom Highway, Gale Garnett, H.P. Lovecraft, Juggernaut, Marvin Gardens, Muddy Waters, Mystic Knights of the Sea, Nina & Catana, Phoenix, Ramblin' Jack Elliot, Salvation, Santana, Sons of Champlin, Dino Valenti, the Youngbloods, Anonymous Artists of America, Blues Feedback, Buddha, Sandy Bull, Cleanliness & Godliness Skiffle Band, Country Weather, Easy Chair, John Fahey, Floating Bridge, Frumoius Bandersnatch, Mitch Greenhill, It's A Beautiful Day, Kaleidoscope, Mother Tucker's Yellow Duck, My Indole Ring, New Lost City Ramblers, Peanut Butter Conspiracy, Richard Pryor, Billy Roberts, S.F. Mime Troupe Marching Band, Alice Stuart Thomas and Josh White. Not listed (but definitely appeared- see photo): the Grateful Dead. 

 Medium-thick flat vellum stock poster is in excellent (B+) condition; there is a bit of moisture ripple in the lower left margin/corner, a few light handling creases, a tiny edge/corner ding or two, a pair of thin diagonal bends and a tiny tear in the upper left margin, otherwise it is a GORGEOUS example of this VERY hard-to-find Pacific Northwest festival/Grateful Dead poster from the first-ever Sky River festival.

 Stream the Dead's entire set HERE:

https://archive.org/details/gd1968-09-02.sbd.miller.115592.flac16