A world away from the rest of the country, and an ocean apart from anywhere else, this is the last place you’d expect to find b-boys and girls. But since Choc Quib Town emerged a decade ago, the Colombian hip-hop trio, comprised of Tostao and fellow emcees Goyo and Slow, is putting Chocó on the map, both nationally and, with their debut U.S. release of “Oro” this week, to hip-hop fans beyond. Unlike Colombian rap groups that came before—Bogotá crews that essentially imitated Run DMC in Spanish—Choc Quib Town uses hip-hop not to obscure but to reveal their own culture.