&quot;Line was drawn through the great lakes&quot;.<p>You might want to check that.<p>Please examine the image very closely; it appears to be based on the border.
Note Lake Superior and positions near lake Erie.
<a href="https:&#x2F;&#x2F;qph.is.quoracdn.net&#x2F;main-qimg-073611f762cf3ef329ee65a5d65baa58?convert_to_webp=true" rel="nofollow">https:&#x2F;&#x2F;qph.is.quoracdn.net&#x2F;main-qimg-073611f762cf3ef329ee65...</a><p>About 45 pixels to border, which is down the middle of the lake.