The National Park Service has been constructing stone walls in Gettysburg National Military Park. Last time we updated you, we looked at these Ziegler’s Grove stone walls, also known by Licensed Battlefield Guides as “Fort Hancock.”We also took a look at another stone wall on Cemetery Ridge. This image was taken facing east at approximately 6:15 PM on Sunday, March 5, 2017.

But Cemetery Ridge isn’t the only ridge to be graced with walls of questionable documentation: Seminary Ridge is getting one too, along the southern boundary of one of David McMillan’s orchards.This map was created on October 26th, 2016, by the Resource Management Division of Gettysburg National Military Park.

West Confederate Avenue is on the right. The newly constructed stone wall meets the existing stone wall in the right of frame.Little and Big Round Top in the left background. The sign for the McMillan Woods Youth Campground (right). This image was taken facing southwest at approximately 6:15 PM on Sunday, March 5, 2017.

This wall will be approximately 340 feet.The tree is part of the McMillan Orchard. This image was taken facing east at approximately 6:15 PM on Sunday, March 5, 2017.

It consists of field stone that’s from Pennsylvania, but not from the Gettysburg area.This image was taken facing east at approximately 6:15 PM on Sunday, March 5, 2017.

Looking back toward West Confederate Avenue.This image was taken facing west at approximately 6:15 PM on Sunday, March 5, 2017.

And if you’ve driven on West Confederate this year, you’ve probably seen these stones piled along the side of the road before you reach the Virginia Memorial. The mystery stones. Where might they end up?This image was taken facing south at approximately 3:00 PM on Friday, November 25, 2016.