UNCHARTED TERRITORY: DAVID THOMPSON ON THE COLUMBIA PLATEAU | Revel in the story of David Thompson, Canadian Hero, surveyor and explorer, mapping 1/5th of the continent of North America.

UNCHARTED TERRITORY: DAVID THOMPSON ON THE COLUMBIA PLATEAU | Revel in the story of David Thompson, Canadian Hero, surveyor and explorer, mapping 1/5th of the continent of North America.