Ministry of Public and Business Service Delivery
Ontario's boundaries were pushed north to Hudson Bay in 1912, completing the province's extension to its current borders.
Map scanned from the
Economic Atlas of Ontario / Atlas Économique de l'Ontario
W. G. Dean, Editor/ Directeur; G. J. Mathews, Cartographer/ Cartographe
Printed 1969 by University of Toronto Press for the Government of Ontario