I was at that show. My girlfriend and I drove from Milwaukee. I wasn't a big Soundgarden fan, but they really impressed me, especially hearing 4th of July. Although the sound was pretty bad, imo, it was a good show.
8/29 - Sleep
9/13 - Samhain
9/20 - Overkill
9/23 - King Crimson
9/29 - Belphegor/Rotting Christ