The Mohawk Indians came from New York. Some Mohawk still live in New York today, but most 21st century Mohawk mostly live east of Lake Ontario today. However, the Mohawk have also settled near Georgian Bay. The red areas on the map below represent Mohawk settlements.
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The following map shows the movement of the Mohawk, around 2 centuries ago.
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Bibliography:
http://www.bigorrin.org/mohawk_kids.htm
http://www.kahnawakelonghouse.com/index.php?mid=7