Heartland: a geographic area in which a nation"s industry, population, and political power are concentrated. Main street canadian equivalent to us megalopolis . 6 of 10 largest cmas, 18 of 33 cmas. 93% of ontario"s population lives in this area, 80% of quebec. Together, on and qc account for 62% of canada"s population, most of which lives in the heartland. Textbook treats on and qc as separate regions. Lectures treats southernmost parts of on/qc as one region, and the northernmost parts as belonging to the near north and/or the far north. Only names its geographic location, doesn"t address social character: physical climate, soils, transportation, energy, cultural french/english, economic resources, trade, creation of wealth. Central canada not actually the center of the country. The remarkable paradox 2 distinct linguistic/cultural regions (faultline) cultural/social disunity, yet at the same time, economic unity. Upper canada = canada west = southern ontario. Lower canada = canada east = southern quebec.