MAP - Locates the Chignecto Isthmus. The premiers of New Brunswick and Nova Scotia say they will apply for federal funding to help protect the Chignecto Isthmus, a vital land corridor linking the two provinces. But they are also threatening to go to court to force the federal government to pay the project's entire cost, which is now estimated to have ballooned to nearly $700 million.; THE CANADIAN PRESS/Sean Vokey