Hello: I have an odd problem. I need a good map showing the counties of Ontario. Here in BC we don't use counties as designations, just cities (as birthplaces, etc.) and I find I am woefully ignorant of Ontario's various boundaries, like 'concession' and so forth. My maternal grandparents, both sides, were from long-time Ontario families. Can someone direct me to a good detailed (but not too detailed) map of Ontario counties? If there have been changes in county lines over time, is there an historical map I should have? Thank you, Rosemary