Halfway between Los Angeles and San Francisco, the historic town of Paso Robles became known for its abundance of hot mineral springs that brought relief from pain--first for the Salinan Indians, then for the Franciscan friars. As word of the springs' healing powers spread, hotels and bathhouses were built to accommodate the tourists who came seeking cures. The little community developed steadily after 1886, when the railroad arrived and town lots were auctioned. Area homesteaders raised cattle, grew grain, and planted fruit, walnut, and almond orchards--all without irrigation. Once known as...