When I was s serious runner, which seems like eons ago , the book on the Tarahumara blew my mind.

A group of indigenous Mexicans who live high up in the mountains, and their way of life is running. They run to deliver mail, to travel,etc, and they are basically the greatest group of ultra distance runners in the world.

Of course their history and story was/is being exploited by Americans, and Nike’s Hurache’s were based on the special shoes that the group makes for themselves, but it is a great story.

Check it out.