Where is the mason-dixon?

Answer 1

North American continent, United States of America.There's always been some disagreement as to the exact location of the dividing lines. It's generally accepted that the East-West line divides Maryland, Pennsylvania and part of West Virginia, and the North-South line divides Maryland and Delaware.

OR SIMPLY...

1. Mason Dixon Line: A stone-made line that separates the Middle colonies from the Southern colonies.