U.S. 40 Cross Section of the United States of America (Chapter 16: Mason-Dixon Line)

 

That was then (1953)

Intro to chapter 16:

U.S. 40 winds among the hills, curves toward the northwest, and crosses Maryland into Pennsylvania.  Halfway up a little hill at the state line, the surface of the highways changes from black to white, and thus give visible and concrete reality to one of the most famous abstractions in American history.  This is the Mason-Dixon Line.

This is now. 

 

This U.S. 40 Mason-Dixon Line crossing is approximately 170 miles northwest of Baltimore.

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Photo by Retiring Guy: 1952 Rand McNally Road Atlas (highlight added)

Related post:

Chapter 1:  Beginnings.  (7/19/2024)

Chapter 2:  Coastal Plain.  (7/20/2024)

Chapter 5.  Six-Lane Highway.  (8/4/2024)

Chapter 6.  Bush River.  (8/5/2024)

Chapter 7:  Baltimore rows.  (8/6/2024)

Chapter 8:  Ellicott City.  (8/7/2024)

Chapter 9.  Frederick.  (8/8/2024)

Chapter 11.  Horrible example.  (8/16/2024)

Chapter 12.  Mount Prospect.  (8/17/2024)

Chapter 13:  Ridge and Valley.  (8/18/2024)

Chapter 14:  The Narrows.  (8/19/2024)

Chapter 15:  From Little Savage Mountain.  (8/27/2024)