These guys claim to have some really good music.
https://www.desertrocks.org/


Date & time: June 7th & 10th
Location: North of Green River, Utah on Hastings Road


It has been stated that it will be posted "no firearms allowed", even though it is on public property (BLM).
https://www.desertrocks.org/#lowerContentPane:lnk2906


Your choice if you want to hang out with these guys. They seem ok from what I've met of them.