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"As the first inland surveyor for the Hudson's Bay Company, Philip Turnor stands tall among the explorers and mapmakers of Canada. Accompanied by Cree guides and his Cree wife, Turnor travelled 15,000 miles by canoe and foot between 1778 and 1792 to produce ten maps, culminating in his magnum opus, a map that was the foundation of all northern geographic knowledge at that time. Barbara Mitchell's biography brings to life the man who taught David Thompson and Peter Fidler how to survey. In her search for Turnor's story, Mitchell discovers her own Cree-Orkney ancestry and that of thousands of others who are descendents of Turnor and his Cree wife."--