Arthur Dobbs prepared this map for his book opposing the trading monopoly of the HBC. He castigated the company for not exploring more aggressively, affirmed that a water passage would be found from Hudson Bay to the Pacific, and identified a hypothetical sea in northern Québec, a route from the Atlantic to Hudson Bay. Dobbs was right in one sense: there was little precise knowledge of the northern continent.

Original map courtesy of Toronto Public Library (TRL), Arthur Dobbs. An account of the countries adjoining to Hudson’s Bay, in the north-west part of America.... London, 1744.