The exact schedule hasn't been determined yet; the initial announcement was just released yesterday.
This was announced yesterday on the official Jayhawks Facebook page:
Originally Posted by samntuck
I see The Jayhawks are listed on the official website for the FREE festival in San Francisco,Hardly Srtickly Bluegrass that is held every year at Speedway Meadow in Golden Gate Park.The fest runs 3 days Sept. 30, & Oct. 1-2, 2011.
I see nothing about this gig posted on The Jayhawks official website or on the Jayhawksfanpage. Does anyone know what day The Jayhawks are playing at this festival?