The North Atlantic Coast & St. Lawrence River Valley Map: In the United States we tend to think of the New England states and Maine as our extreme northeastern corner.
They are that, but they're also the middle region of the continental corner--the central coastal strip of the greater region centered on the St. Lawrence River Valley.
The Gulf of Maine and Bay of Fundy define the south coast, and the Gulf of St. Lawrence, the north coast, and the St. Lawrence River define the great far northern center of North American settlement.
Included on the map: All of New York, Pennsylvania, Rhode Island, Connecticut, Massachusetts, Vermont, New Hampshire, and Maine. Also, all of New Brunswick, Nova Scotia, Prince Edward Island, and quite a bit of New Jersey and Quebec.