That depends on if you mean in the Lower 48 or not.
i think it is Cape Cod
Southwestern
Northwestern point of the Lake of the Woods happened in 1818.
The Northwestern-most US State is the state of Alaska.
The Northwestern-most US State is the state of Alaska.
Most deserts of the United States are located in the southwestern area.
Alaska is the northwestern most state and its capital is Juneau.
In the United States, Washington is the northwestern most state.
New York (the big APPLE)
Northwestern
The most western point in the US is called East Quoddy Head.
Marine