Tracklist
| –Chicago Transit Authority* | Introduction | 6:35 |
| –The Flock | Tired Of Waiting | 4:40 |
| –Al Kooper | You Never Know Who Your Friends Are | 2:58 |
| –Chambers Brothers* | Wake Up | 2:15 |
| –Appaloosa | Rosalie | 4:20 |
| –N R B Q* | C'mon Everybody | 3:01 |
| –Don Ellis* | House In The Country | 2:46 |
| –Pacific Gas And Electric* | Bluesbuster | 2:56 |
| –Spirit | New Dope In The Town | 4:24 |
| –Jacobs Creek | Behind The Door | 4:00 |
| –Moby Grape | Looper | 3:00 |
| –Illinois Speed Press | Hard Luck Story | 4:43 |
| –Aorta | Heart Attack | 2:30 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| SPR 35 | Various | Underground '70 (LP, Comp, Pur) | CBS | SPR 35 | Germany | 1970 |
| SPR 35 | Various | Underground '70 (LP, Smplr, Pur) | CBS | SPR 35 | Germany | 1969 |
| S 64033, SBPG 64033 | Various | Underground '70 (LP, Comp) | CBS, CBS | S 64033, SBPG 64033 | Greece | 1970 |
