Early Maps of the Gatineau Valley
Note that maps are in .jpg format except where noted.
Quebec, Department of Crown Lands, Obalski, J., "Map of Part of the County of Ottawa Showing the Phosphate District.", 1891.
LAC (H2/320/Ottawa/1891) (Mikan 4128998, e010859269).
Author unknow, "Map Shewing Deposits of Phosphates On Lots .V.VI. &.VII. Range 2 Township of Masham County of Ottawa Prov. of Quebec Dominion of Canada.", N.D.
LAC (H3/330/Masham/N.D), (Mikan 4126096).
Geological Survey of Canada. Vennor, H. G., " Map showing distribution of Phosphate of Lime Rocks and the position of the most important mines in Ottawa County, Quebec.", 1878.
GSC (Multicoloured Geological Map, 122) (GEOSCAN ID107700).
Geological Survey of Canada. Ells, R W, "Geological map of the City of Ottawa and Vicinity, Ontario and Quebec.", 1901.
GSC (Multicoloured Geological Map, 714), (GEOSCAN ID107537).
Geological Survey of Canada. Ells, R W, "Provinces of Quebec and Ontario, Part of the Counties of Ottawa, Argenteuil, Terrebonne, Two Mountains and Vaudreuil, Quebec; and Carleton, Russell, Prescott and Glengarry, Ontario.", 1903.
GSC (Grenville Sheet No. 121) (GEOSCAN ID107447).
Geological Survey of Canada. Ells, R W, "Quebec and Ontario, parts of counties of Ottawa and Pontiac, Quebec and Carleton and Renfrew, Ontario", 1906.
GSC (Pembroke Sheet No. 122) (Multicoloured Geological Map, no. 660) (GEOSCAN ID107541).