This novel takes place firmly within the "Steinbeck country" of California's Salinas Valley (although the three primary locations described are all fictional): most of the narrative occurs at Rebel Corners, a crossroads 42 miles south of a San Ysidro, California that is described as being north of Los Angeles. Juan Chicoy (half-Mexican, half-Irish) maintains a small bus, nicknamed "Sweetheart". He earns his living as a mechanic, and by ferrying passengers between Rebel Corners and San Juan de la Cruz. The larger Greyhound Bus Company serves both of those locations on separate routes, but does not have service connecting the two.