From Grateful Dead

Mid-day, midweek gig with Dead at Band Shell in Golden Gate Park Just Grateful Dead and Mount Rushmore. Virtually no audience. I was blown away by their set. I walked up to Bill afterwards and said something like, “That was amazing!”. He replied, “Yeah. Not too bad for jackin’ off.”

The text of the newspaper clip says

Once again tomorrow, from 1 to 3 p.m., another in The Examiner’s summer-long free jazz-rock concerts will be held in the band concourse at Golden Gate Park.

Featured band will be the famous Warner Brothers’ recording stars the Grateful Dead, acclaimed as one of the foremost groups in the hard blues-rock tradition known around the world as the “San Francisco Sound.”

Joining with the Dead will be the Mt. Rushmore group, among the strongest of the newcomers on the local rock-concert scene and recent participants on another peak, Mount Tamalpais.
Be our guests: bring the kids, a picnic lunch, and enjoy your park, and your music.

Joining The Examiner as sponsors are the San Francisco Youth Association and the Recreation and Park Department.”
(from the S.F. Examiner, July 5, 1967)

http://deadessays.blogspot.com/2018/06/1967-mystery-show-photos.html