After the transcontinental railroad opened Utah to large-scale emigration and market capitalism, hundreds of women in Salt Lake City began to sell sex for a living, and a few earned small fortunes. Businessmen and politicians developed a financial stake in prostitution, which was regulated by both Mormon and gentile officials. In this book, Jeffrey Nichols examines how prostitution became a focal point in the moral contest between Mormons and gentiles and aided in the construction of gender systems, moral standards, and the city's physical and economic landscapes.