Clearly the only evidence for Norse / Vikings in "America" is at Vinland and L'Anse aux Meadows.

Here

It is referred to as a staging post. The obvious question is to where.
Perhaps by studying the geographical and environmental situation at L'Anse aux Meadows some predictions might be made as to where they might be looking for?

Some concern about the new finding - they were looking for evidence of Norse / Vikings. Did they find any? They found one piece of "Bog Iron" - evidence of smelting I think. One historian said - no evidence of anybody interested or capable of smelting before 18C except Norse / Vikings therefore - must be Norse / Vikings. Is this a "Circular Argument"?