Sources of the River, 2nd Edition Tracking David Thompson Across North America

In this true story of adventure, author Jack Nisbet re-creates the life and times of David Thompson-fur trader, explorer, surveyor, and mapmaker. From 1784 to 1812, Thompson explored western North America and was the first to chart the entire length of the Columbia River. His field journals provide the earliest written accounts of the natural history and indigenous cultures of the region, and Nisbet uses them to guide his own discovery of the Northwest Territory some two centuries later. Book jacket.

Award-winning author Jack Nisbet writes about human and natural history from his home in Spokane, Washington. He is a field biologist and natural history teacher. His books include Visible Bones and The Mapmaker's Eye. 

I.S. MacLaren is a professor in the Department of History and Classics at the University of Alberta.