This will appeal to an extremely limited number of readers, but for those who are interested in the history of sheep herding in the United States, its great. I also love maps, so I liked it. I bought it to inform thinking I was doing about the possibility of a connection between the historical rise of raising sheep as an economic farming/ranching mainstay and the rise of MS cases in the United States and Western Europe. This sounds bizarre but there is a virus that attacks such animals and produces a clinical presentation much like human MS. ( )