LIA conveys a witness recollection "It was a country hoe-down theme, and if I remember correctly, it was all acoustic. There were bales of hay strewn about, 'folksy' things like bobbing for apples, and a band composed of Garcia on banjo and David LaFlamme on fiddle, amongst others. (There were also several plastic trash barrels filled with Kool Aid that was pretty heavily laced with psychedelics. Needless to say, things got a little strange in there, as the night wore on.)" For a similar event, see the 8/13/69 Hoe-Down.
listing: Good Times vol. 2 no. 44 (November 13, 1969), p. unknown