On western trails in the early seventies / Lists

Books about the ever-changing American frontier from its origins along the East Coast through eventually being pushed across the continent to the Pacific.

Literature pertaining to the history of the North American fur trade and it's far-reaching influence on Native American culture, exploration of the continent, it's ties with the spread of Christianity, armed conflicts both in the New World and in Europe, and the lasting effects of it's many daring exploits and endeavors.