Awesome festival, super laid back and draws a somewhat "older" (mature? lol) crowd which IMO is wonderful (I'm 33). Check out the lineups from 2014 and especially 2015, absolutely incredible stuff involving ABB, TTB, Mule & Phil Lesh brought out some pretty killer bands too. I have a good feeling that Derek and Susan get added in some form, and another collaboration hopefully.

Widespread Panic
Phil Lesh & Terrapin Family Band (celebrating 40th of Terrapin Station)
Phil Lesh & Friends
Gov't Mule
Umphrey's McGee
String Cheese Incident
Joe Russo's Almost Dead
Moe.
Keller Williams Grateful Gospel
Markus King Band
Eric Krasno Band
The Avett Brothers
JJ Grey & Mofro
Greensky Bluegrass
John Butler Trio
The Revivalists
Brandi Carlile
TAUK
Margo Price
Los Colognes