Whether you enjoy skiing, antiquing, camping, or simply taking in the fall colors, the St. Croix Valley is a popular and affordable day trip or vacation destination for thousands of visitors every year. The quaint towns that dot the Minnesota and Wisconsin sides of this scenic 130-mile stretch of river offer many modern-day attractions but also are a window into this region's storied past. Let Deborah Morse-Kahn and her new book The Historic...