The arts (or, at least, large concentrations of artists) are usually considered an urban phenomenon, centered in and around cities and often reflecting in their local vibrance the overall quality of life in the region. But a new study by a Minnesota group shows that one of the state’s highest concentrations of arts and culture is in the mainly rural northeast “arrowhead” region. “Arts organizations bring a lot of outside money into the Arrowhead, according to the study. Nonresidents make up about one-third of the audience for nonprofit arts events in the region, and out-of-towners tend to spend more.”