Then another long interval northwards to the Athabasca Pass is said by the Indians to offer an impassable barrier to men and horses.
This mass of ice, carried and accumulated by the great polar current, was hurried through the strait, and if the frost should unite it, it would present an impassable barrier to the Forward.
He hoped to come out in Melville Sound, which we have just crossed, and with reason; but the ice at the end of the strait formed an impassable barrier.
There was no ice at the entrance of Regent's Sound; but it was densely massed beyond Leopold Harbor, as if to form an impassable barrier to the northward progress of the Forward.
The roads, however, were at the time of my visit as execrable as on the north side, and the outskirts were offensive with offal and rubbish, while the pantano or mud-hole seemed to present an impassable barrier to friend or foe.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "impassable barrier" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.