Historical about the beaver fur trappings of the mountain men. Very well documented story form of interactions of famous people. Men such as Jim Bridger, Jedediah Strong Smith, John Colter, Hugh Glass , Tom Fitzpatrick, and Jim Beckwourth to mention just a few. Also explains the working of the fur companies in trying to monopolize the beaver trade. Decorated with yarns told by the mountain men themselves. Nice reading for a long cold winter.