The mountain-set college town of Boulder, CO, has since the late '60s had a notoriously hippie-ish, laid-back vibe. In the '70s, mellow soft rockers Firefall were the city's main musical export, and more recently bands like Leftover Salmon, the Samples, the String Cheese Incident, and Big Head Todd & the Monsters have made Boulder jam band central. (To be fair, the Dead Kennedys' Jello Biafra is also a Boulder native, so it's not all hacky sack, noodle dancing, and patchouli.) This makes the heavy power trio rock of Boulder's Rose Hill Drive all the more surprising: this young...