Lincoln County has tried to bolster its struggling economy with tourism in recent years, and visitors from Canada have become key to that effort. In summer, it’s normal to find more Canadians than Americans in the Eureka area, and many own second homes there. But the flow of Canadian visitors — and their dollars — has all but dried up this summer, and it’s beginning to have a major impact on local businesses. At least one downtown shop is closing its doors for good, and others are reportedly on the verge of bankruptcy, locals say.