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 known. It is fair to say that in a generation or two the spots, if left unmarked, will never be located correctly. A small stone, with a plain legend, costing a mere trifle, would insure the future against such a misfortune.

The subject of portage paths naturally suggests the matter of locating historic sites and marking them for the reason that so many such points were on these portages. A mere catalogue of the forts mentioned in preceding pages prove this conclusively. Add to these the mission houses, trading stations and treaty houses here erected and we have a sum total of vitally important historic sites which could be equalled only by looking to the river valleys. And very frequently indeed the real significance of many a fort at a river's mouth lay in the fact that at that river's head lay a strategic carrying place. What else did Fort Defiance, Fort Venango, Fort Oswego, Fort Niagara, Fort Miami on the St. Joseph mean?

These portage routes should be presented to all local and State historialhistorical [sic] societies as important fields of study in the very im-