Denver's Goldrush Music Festival has unveiled the rest of its lineup for its 4th annual staging. The festival is packing some heavy hitters this year, such as headliners Eric Copeland and Wolf Eyes, as well as acts like Guerilla Toss and, announced previously, Thug Entrancer. The two day festival takes place September 13-14. You can snag yourself tickets here. Check out a video of Wolf Eyes playing live at 285 Kents's farewell show below.