This long-awaited study, the magnum opus of a leading railroad historian, describes the conception, construction, and early operation of the first narrow gauge railroads in northern California. It is lavishly illustrated by some 600 photographs and drawings, almost three-quarters of which have never before been published. The topic is approached through an unusual lens: the history of the relatively small but extraordinarily inventive contracting and engineering firm of the brothers Thomas and Martin Carter. The Carters were able to reduce the cost and complexity of light railroad...