How far west does the mason-dixon line extend?

Answer 1

Texas

Answer 2

Officially the Mason-Dixon line ended at the westernmost boundary of Maryland, since the line was surveyed expressly for the purpose of determining the boundary between Maryland and Pennsylvania. The two states had been disputing over the location of the line of latitude which was the legally defined border, so Mason and Dixon were hired to survey it. Since the boundary between the two states extends west to a point due north of the source of the Potomac River, that would be the westernmost point of the Maxon-Dixon Line.

Answer 3

The Mason–Dixon Line (or "Mason and Dixon's Line") is a line of demarcation between four states in the United States. It forms part of the borders of Pennsylvania, West Virginia, Delaware, and Maryland, surveyed when they were still British colonies. After Pennsylvania began abolishing slavery within the Commonwealth, in 1781, the western part of this line, and the Ohio River, became most of the border between the free and slave states (Delaware, however, east of the Mason-Dixon line remained a slave state). Popular speech, especially since the Missouri compromise of 1820, uses the Mason-Dixon line symbolically as a supposed cultural boundary between the Northern United States and the Southern United States.

See the map on the wikipedia page ...

Answer 4

in perpetuity, really, because it's just a line. but the only place it shows up on a map is on the pennsylvania-maryland border.

anything south of pennsylvania is south of the mason-dixon line and anything north of maryland is north of it.