On the final day of the three-day long Sky River Rock Festival, held in fields near Sultan, Washington, USA, The
Grateful Dead turn up unannounced and play. Other acts playing over the three days include
Santana,
Big Mama Thornton,
James Cotton,
Country Joe And The Fish,
Pink Floyd, Kaleidoscope,
John Fahey, Richard Pryor, Dino Valenti, Byron Pope,
It's a Beautiful Day,
Peanut Butter Conspiracy, Alice Stuart Thomas,
The Youngbloods, The New Lost City Ramblers, and local groups such as Juggernaut and Easy Chair.