Rival Rails sheds light on the process of the building of America's railroads from the early 1800s through the mid-1900s with the focus on the late 1800s through the early 1900s. The typical American history survey course tends to mention the building of the first transcontinental railroad by the Central Pacific and the Union Pacific, tells of its completion with the golden spike, and leaves railroad history pretty much at that, as if once these roads met at Promontory Point, Utah, then there were just railroads everywhere. Borneman shows how there is so much more to the history of rail in America, especially the West. I never imagined there were so many roads both in competition with each other and in joint business with each other. There were so many people and railroads involved, I had a hard time keeping them all straight, but part of the problem there was because I progressed through the book so slowly at first due to my negligence to set aside more time to read. I think I would have gotten more out of the book if I had read it at a more consistent speed, but I still found it very interesting and informative. I was hoping for more about the actual work of building railroads, but Borneman focused mainly on the business side of railroad building, on the ones who did not get their hands dirty, and as I progressed through the book, I realized Borneman also focused a lot on the Santa Fe. I guess this is warranted, as I learned the Santa Fe was a major player in the railroad field for many many years, but I wonder if it also shows a bit of bias or favoritism compared to the other railroads he covered. Nonetheless, this book can serve to enlighten readers who want to know more about how railroads came to be in the American West following the first transcontinental completion because the other railroads did not just suddenly appear on the map as the brushing-over of survey history implies.