Max Creek is a jam band that started in the seventies and is still going strong. They play style probably most similar to the Grateful Dead, however they have many other influences and just an overall great sound. They have over one thousand shows on archive.org and most of them are in mp3 format, not to mention it's great, free music. So if you're a fan of jam bands or just good music in general, you should check them out.
These are photos from concerts where Max Creek played, so they may be of other bands that played the concert as well.
Gathering of the Vibes 2003 Jul 10 - 13, 2003 Mariaville Lake, New York, United States Uploaded by Skiracer2002