Most westerly and most easterly highway points in North America.

I saw the picture below on a nephew's Facebook entry and I remembered spending some time there while visiting an oil well for Schlumberger. Anchor Point, which is a little north of Homer is the most westerly highway point in North America.

Then I remembered driving through Main a Dieu, Nova Scotia when Jackie and I were RVing in Canada. I believe Main a Dieu is the most easterly highway point in North America. It is a little east of Sidney.

I wonder how far it is between these places. I have traveled it.