The 1st Annual Grassroots Music Festival Poster
Updated August 29, 2026
| Lot number | 147 |
| Auction | Wiseman |
| Date | September 21, 2026 at 11:00 AM EDT |
| Auction house | Colson Auctions |
| Location | houston, Texas |
The 1st Annual Grassroots Music Festival took place June 4, 5, and 6, 1971, at Ontelaunee Park in New Tripoli, Pennsylvania.
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