Charles Trumbull Hayden built the first canal on the south side of the Salt River in 1870. Soon after, he built a store, a flour mill, and a cable ferry across the river, and he started a town. Since then, Tempe has changed from a small farming community to a lively urban center. Moreover, Tempe's residential growth has made it the seventh-largest town in Arizona. Author Frederic B. Wildfang documents the history. Photographer Linda Spears illustrates the changes.