northern california folk rock festival
- https://www.dead.net/archives/1968/artwork/northern-california-folk-rock-festival-poster
- https://www.dead.net/archives/1968/photos/head-shot-bobby-playing-northern-california-folk-rock-fest
- https://www.dead.net/archives/1968/photos/looking-jerry-bobby-playing-northern-california-folk-rock-fest
- https://www.dead.net/archives/1968/artwork/program-northern-california-folk-rock-festival
- https://www.dead.net/archives/1968/photos/jerry-pigpen-play-northern-california-folk-rock-fest-color