STS9 will headline the Symbiosis Gathering, which is scheduled to take place at Woodward Reservoir in Oakdale, CA from September 19-23. The band will join previously announced acts like Shpongle (DJ Set), Emancipator, Mount Kimbie, Polica, Hudson Mohawke, RL Grime, and many more at the event. Advance passes are now on sale for $255 until August 21.

In addition to the music, the Symbiosis Gathering will feature yoga, inspirational speakers and workshops, cirque theatre comedy, surrealist bingo, a kids area and various art installations.