Reading a great book now called The Farfarers, by Farley Mowat, in the beginning where he writes about the ruins of an 80 foot long boat shaped building of stone on Pamiok Island at the mouth of the Payne (Arnaud) River where it empties into Ungava bay, the open Atlantic just to the east out the Hudson Strait just north of Labrador.
The stone structure was certainly not built by the Inuits, it was long before they arrived, with a boat ramp nearby cleared of the large craggy stones of that shoreline at high tide, a ramp for very big boats, probably eighty feet long. There is no sign of what constructed the roof of the huge boat-shaped longhouse on the island there in the far north, the nearest timber for a wooden roof over a thousand miles to the south.
Yet 2,000 miles to the east across the North Atlantic, the islanders of the Shetlands north of Britain place their old boats now longer seaworthy atop the walls to serve as the roofs, which of course jibes with the boat ramp and lack of signs of timber roofing to the west, Iceland and Greenland enroute, not really a long voyage at all considering this ancient mapping method http://genesisveracityfoundation.com/earth-measure-geometry.
They could have come to Ugava Bay quite anciently when the Ice Age had ended, perhaps circa 1200 b.c., when many people groups had lost much land because the sea level rose prodigiously from 1500 b.c. to 1400 b.c., having consumed the empire of Atlantis, the northen portion of which was tin-rich England, and the Dogger Banks now beneath the North Sea, the highlands of that territory on the west having been what now are the Shetland Islands. Read The Farfarers.