When a band uses the modifier “Colorado” to describe their style of bluegrass, it immediately conjures a laid-back, loose and jammy sub-genre, far to the left of traditional bluegrass. Sure, the state is home to RockyGrass and is responsible for birthing conventional bluegrassers like High Plains Tradition and Bluegrass Patriots. But to many, “Colorado bluegrass” means bands like Leftover Salmon, Yonder Mountain String Band and The Infamous Stringdusters.