The Family History Library has a small collection of Ontario maps and atlases. Among these is a very useful series of outline maps which give county and township boundaries and the names of county seats:
- Hancocks, Elizabeth. Townships and County Seats of Ontario. Toronto, Ontario: Ontario Genealogical Society, [197-?]. (Family History Library pamphlet 971.3 A1 no. 13; film 982435 item 11.)
Various companies published excellent atlases of southern Ontario counties during the 1870s and 1880s. These atlases include maps of townships which show the names of settlers. Many are in book form or on film at the Family History Library. Most of these atlases are indexed in People of Ontario or Central Canadians described in Ontario Genealogy.
An example is:
- Illustrated Historical Atlas of the Counties of Grey and Bruce, Ontario. Toronto, Ontario: H. Belden and Company, 1880. Reprint. Port Elgin, Ontario: Cumming Atlas Reprints, 1975. (Family History Library film 982194 item 2.)
The best collections of Ontario maps are at the National Archives of Canada and the Archives of Ontario. A bibliography of early Ontario maps is:
- Winearl, Joan. Mapping Upper Canada, 1780-1867: An Annotated Bibliography of Manuscript and Printed Maps. Toronto, Ontario: University of Toronto Press, 1991. (Family History Library book 971.3 E73w.)