What makes Antecedent Boundaries different from Relic Boundaries? Is the Border between the US and Canada an Antecedent Boundary? Does the USA have Antecedent Boundaries?
Browsing: 49th parallel
What makes Antecedent Boundaries different from Relic Boundaries? Is the Border between the US and Canada an Antecedent Boundary? Does the USA have Antecedent Boundaries?