Anyone who is fascinated with the Voyageur/fur trade past of canoe country will certainly find this book incredibly enlightening.
It documents the underwater research diving that took place from 1960-73.
~How they did it
~Where they did it
~What they found
~The historical significance of what they found
~Each items importance & how it was used back in the day
Included are pictures of many of the items recovered. Along with some general history of the area. And where some of the items were likely originally crafted.