51 years ago today, an estimated 600,000 people packed into the Watkins Glen Grand Prix race track for the legendary “Summer Jam at Watkins Glen” to see the Allman Brothers Band, THE BAND, and the Good Ol' Grateful Dead. It was the largest rock concert ever at the time. 🎥 KNBC-4 | Obsolete Video | Jerry Garcia

BY THE NUMBERS July 28, 1973 - The Summer Jam at Watkins Glen 1973 at Watkins Glen, NY | All Things Music Plus

How much would you put up with to see THE BAND, Allman Brothers Band, and Grateful Dead? Robbie Robertson recounts the "disastrous" conditions at 1973's Summer Jam at Watkins Glen. | SiriusXM

🙏🏻@oleskygreg "The Allman Brothers Band headlined the Watkins Glen Summer Jam 52 years ago today. The crowd was estimated to be at least 600,000 people, making it the largest crowd for a music event in US history. Unforgettable sets by The Band, the Grateful Dead and the Allman Brothers Band ended around 3 o'clock on Sunday morning. Here's some iconic photos of Dickey Betts, Jerry Garcia, Bob Weir and Butch Trucks on stage, along with rare pics of Jerry Garcia, Chuck Leavell, Jaimoe and Gregg