| Show the vanished rivers track explorations made last autumn brought to light many interesting bactal facts about what is known to geologists a aa the mattala mattawa river this ill d Is bell believed eved to have been the ancient outlet for the great lakes huron michigan and superior before their waters began to flow through lakel lake erie brie the old river bed was traced ini in the canadian province of ontario from lake near the north l ern part of georgian bay to the val ley of 0 the ottawa river at one clacel place the site ot of an all ancient cataract was disi dis i 1 covered and reason was found for be bei i lieving that the size of the vanished vanish eoll river was very similar to that ot of th the ea st claire and detroit riv rivers ers through gill the great lakes now have their outlet |
