Question: what line formed the western limit of lands the colonists were allowed to settle??? 

Answer: The Colonists were not allowed into the Ohio valley. This was disputed territory with the French. This would eventually lead to the French and Indian War. Their was no clear dividing line. Both the French and the English claimed the same land. The Colonies would then get access to this area. The next line would be the Mississippi river. This was still owned by the French. This would end only after it was purchased from France.
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